News for hackers. Stuff that matters.
Re:I stopped working on black hole information loss by mungal on Saturday April 23, 2022 @10:27AM (#31134547)
Sabine’s niche seems to be a confident cynicism or learned skepticism and is a much appreciated addition to the space.

I like Sabine’s personality and the fact she stands in defiance of the status quo of scientific outreach, namely my two least favorite tropes: “science is fun” and “let me explain something using terrible metaphors because I fail to understand the math myself”.

Sabine, if you’re reading this… please create more technical content.

Maybe a companion video to your more general takes.

One that shows the numerical side of things. Your experience and personality already lend itself to this effort.

You say “the math is insufficient” show us the math! Show us how it’s insufficient using numerical examples.

Scientific outreach has a real “draw the rest of the owl” problem and I think Sabine is perfectly poised to fill the gap.

There’s a George Carlin quote I’ll paraphrase ~“never talk down to your audience, they’ll catch up eventually.”

Re:I stopped working on black hole information loss by aeonik on Saturday April 23, 2022 @11:54AM (#31135378)
Completely agreed. I was skeptical about her at first. My first exposure to her was the panel interview hosted by PBS Space Time "Theories of Everything" https://youtu.be/N_aN8NnoeO0

At first I thought she was biased because she was was so skeptical about almost every point during the discussion, but her logic and arguments were all so solid and well thought out, they were impossible to ignore.

I checked out her channel, and she was the first YouTuber that I found who actually explained the syntax of Quantum Mechanics equations and what Kets are. https://youtu.be/ctXDXABJRtg

More detailed content would be greatly welcomed from her.

Re:I stopped working on black hole information loss by qsdf38100 on Saturday April 23, 2022 @03:50PM (#31137815)
She seems to be after some hidden truth that "scientists" are not telling us. I’d be more appreciative of her insights if those were not implying we’ve been lied to. She should consider that 1. Being wrong is ok, doesn’t mean someone’s lying. 2. Maybe she is wrong. 3. Interpretations of quantum mechanics are fun and there’s nothing to be angry at. So I’m a bit skeptical about her skepticism, it doesn’t sound constructive to me.
Re:I stopped working on black hole information loss by tambourine_man on Saturday April 23, 2022 @07:17PM (#31139629)
The tone is off putting for me as well. It comes across as arrogant mixed with what I'll call a “Youtube language”: the TRUTH about X, what they don't wan't YOU to KNOW, along with excessively expressive thumbnail.

This “Youtube language” is something a lot of content creators suffer from, unfortunately.

Re:I stopped working on black hole information loss by Sebb767 on Saturday April 23, 2022 @08:14PM (#31140005)
I hate those titels, too, but let's be honest: They're a necessary sharade. If you want to earn any money from YouTube or even just get views, you need to please the algorithm. Sure, you can work without them, but it's like driving with the handbrake pulled.

The content of the videos is what matters. The advertising is annoying, but necessary.

Re:I stopped working on black hole information loss by LordDragonfang on Sunday April 24, 2022 @03:38AM (#31142016)
Derek of Veritaseum made a video laying out why "clickbait-y" titles like that are necessary, and I feel like it makes a pretty good case.

https://www.youtube.com/watch?v=S2xHZPH5Sng

The tl;dw is that the most effective titles come right up against the edge of what an average target audience member would consider unacceptable on the axes of withheld information (to create a curiosity gap) and misleading sensationalism (to maximise the perceived importance of the topic); and you have to play the game of having effective titles because otherwise no one clicks on your video and it stops being recommended to people who would find it valuable.

Re:I stopped working on black hole information loss by feral on Sunday April 24, 2022 @08:05AM (#31143270)
I felt that this change reduced the quality of Veritasium, for me. I know it's just the titles, but it feels more bait and switch.

I understand why he did it, but wish he didn't. If I was a leader at YouTube I'd be pretty concerned about this - long term, it drives your platform in the direction of clickbait. Yeah there's benefits to that, but could also turn into a competitive weakness for YouTube. I think they should improve the recommender to make this unnecessary.

Re:I stopped working on black hole information loss by tambourine_man on Sunday April 24, 2022 @10:47AM (#31144507)
I saw that video. I don't need an explanation of why it's being done, it's pretty obvious and it works.

What I'm saying is that we can do better than 50 year olds making child-like expressions with clickbaity titles.

Re:I stopped working on black hole information loss by drdeca on Tuesday April 26, 2022 @02:25AM (#31164595)
When he did this is basically when I decided to no longer watch his videos, and I don't regret this decision.
Re:I stopped working on black hole information loss by tambourine_man on Saturday April 23, 2022 @10:06PM (#31140631)
I think we can aspire to better than that. I do at least.
Re:I stopped working on black hole information loss by hiptobecubic on Sunday April 24, 2022 @12:01AM (#31141190)
People click those titles and don't click other titles. No one cares that's it's not sufficiently uppity to satisfy the intellectual elite.
Re:I stopped working on black hole information loss by couchand on Sunday April 24, 2022 @08:31AM (#31143394)
Evidently, at least two people care.
Re:I stopped working on black hole information loss by phs318u on Tuesday April 26, 2022 @02:06AM (#31164481)
Really? Titles that are factually reflective of content are “uppity”, and not liking obviously intentional click-bait titles makes you “intellectual elite”? Wow. Welcome to the idiocracy.
Re:I stopped working on black hole information loss by hiptobecubic on Sunday May 08, 2022 @01:29AM (#31301607)
Don't shoot the messenger
Re:I stopped working on black hole information loss by revscat on Sunday April 24, 2022 @10:24AM (#31144281)
Alternatively, you could accept what is at root a rather small thing, and adjust you own reaction. That’s what I did when those kind of titles started to become common.
Re:I stopped working on black hole information loss by tambourine_man on Sunday April 24, 2022 @10:40AM (#31144439)
I deal with it, of course. I'm a heavy Youtube user. The net result is positive.

But it's extremely distasteful and I'm not willing to lower my standards because of this stupidity.

Re:I stopped working on black hole information loss by phs318u on Tuesday April 26, 2022 @02:13AM (#31164526)
It’s not even about your or my standards. The overall tone of media sets the standard. There’s already a rising tide of anti-intellectualism that seeks to actively disparage intellectual thought as “uppity” as described in a comment above. This is not healthy for society. If you wonder how it was that in history, waves of advancement in knowledge seem to be followed by periods where things seem to go backwards, I find it easy to imagine that popular anti-intellectual sentiment would have looked very similar. Distrust of “elites” and disparagement of the philosophies of those “elites”, throwing out the baby with the bath water.

EDITED to add that what attaches itself to such sentiment (or stokes it), are cynical political actors happy to gain power irrespective of the cost to society.

Re:I stopped working on black hole information loss by charcircuit on Saturday April 23, 2022 @09:44PM (#31140513)
>you need to please the algorithm

Don't blame the algorithm. Blame people themselves. It's not YouTube's fault that people find those kinds of titles more interesting.

Re:I stopped working on black hole information loss by strbean on Saturday April 23, 2022 @11:27PM (#31141061)
Google put huge amounts of effort into punishing the search rankings of sites that attempted to manipulate their ranking in shady ways. YouTube could put in some amount of effort towards the same end.

Of course, that would probably reduce engagement...

Re:I stopped working on black hole information loss by hiptobecubic on Sunday April 24, 2022 @07:46AM (#31143139)
"Making people want to click the video" is not shady in the same sense as SEO. A comparable trick might be jamming a bunch of keywords into the description.

Your real complaint is that people like stupid videos, but that's not YouTube's problem or fault.

Re:I stopped working on black hole information loss by couchand on Sunday April 24, 2022 @08:37AM (#31143418)
The concern with SEO is that the goal is to drive traffic to a site without meaningfully improving the content. Doesn't the same argument apply here? If the video doesn't change, and it's just the title and thumbnail changing in an effort to get more clicks, how is that materially different from SEO?
Re:I stopped working on black hole information loss by hiptobecubic on Sunday May 08, 2022 @01:27AM (#31301589)
Because it's the viewer deciding to choose the video, not some algorithm deciding what they get to choose from.
Re:I stopped working on black hole information loss by amanaplanacanal on Sunday April 24, 2022 @06:37AM (#31142788)
> Google put huge amounts of effort into punishing the search rankings of sites that attempted to manipulate their ranking in shady ways.

From the search results I get, it appears that they abandoned that effort long ago.

Re:I stopped working on black hole information loss by AnimalMuppet on Saturday April 23, 2022 @06:26PM (#31139235)
I read the article. I've read other articles of hers as well. And I don't read her that way at all.

What she primarily is, is someone who insists on experimental data as an anchor for physical theories. She's not totally against theory that isn't backed by experiment (despite her last paragraph or two), but given multiple competing theories that cannot be experimentally verified, she is unwilling to accept any one of them as "the truth". I don't think she's wrong in that.

Re:I stopped working on black hole information loss by qsdf38100 on Saturday April 23, 2022 @07:54PM (#31139893)
Sorry I didn’t read the article. I plaid guilty. I have this feeling because of how she comes across on YouTube content, which might not be representative of her work.
Re:I stopped working on black hole information loss by AnimalMuppet on Saturday April 23, 2022 @08:19PM (#31140039)
Well, the article was the transcript of one of her YouTube posts. But the article doesn't tell me tone of voice, facial expression, and the like. So... maybe I have to say "Sorry, I didn't watch her on YouTube."
Re:I stopped working on black hole information loss by lumost on Saturday April 23, 2022 @06:48PM (#31139419)
She makes very specific points on what can and can’t be reasonably treated as a scientific problem. Her main concern appears to be that much physics research and funding has deviated towards mathematical philosophy. Work which may be correct, but is untestable and ultimately unscientific.
Re:I stopped working on black hole information loss by zarzavat on Sunday April 24, 2022 @08:52AM (#31143471)
Re point 2: she made a video on neural networks that I think many people here will be able to appreciate.

https://youtu.be/fxiHM11w-rk (about 2 minutes in)

Re:I stopped working on black hole information loss by IG_Semmelweiss on Saturday April 23, 2022 @01:35PM (#31136348)
Here is my first exposure to her. Its an in depth discusson on her own book. She does strike me as very cynical.

https://www.econtalk.org/sabine-hossenfelder-on-physics-real...

Re:I stopped working on black hole information loss by billfruit on Saturday April 23, 2022 @01:07PM (#31136069)
Doesn't Feynman Lectures book III explain kets fairly well?
Re:I stopped working on black hole information loss by hobo_mark on Saturday April 23, 2022 @01:17PM (#31136165)
Feynman was a YouTuber?
Re:I stopped working on black hole information loss by sdenton4 on Saturday April 23, 2022 @04:27PM (#31138173)
Have you read 'Surely You're Joking Mr Feynman'? Dude was a youtuber physicist in a world where youtube didn't exist.
Re:I stopped working on black hole information loss by 8note on Saturday April 23, 2022 @01:42PM (#31136423)
Somebody put his lectures up on YouTube a long time ago.

If "person who's content is available on YouTube" qualifies one as a YouTuber, then yes

Re:I stopped working on black hole information loss by bee_rider on Saturday April 23, 2022 @02:12PM (#31136749)
I think generally "YouTuber" is taken to mean somebody who is building particular YouTube personality/brand thing.

But even if we want to be very general and just parse it using default English, the -er suffix would mean someone who is doing something. I believe it would be more accurate to say Feynman was YouTubed.

Re:I stopped working on black hole information loss by mbaytas on Saturday April 23, 2022 @05:10PM (#31138583)
Feynman most probably would be a youtuber if he were alive.

Even posthumously he’s been one of the most popular educators on youtube.

Re:I stopped working on black hole information loss by AnimalMuppet on Saturday April 23, 2022 @06:28PM (#31139249)
How did you go from "Feynman Lectures Book III" to "Youtube"? billfruit was asking about a book.
Re:I stopped working on black hole information loss by goldenkey on Saturday April 23, 2022 @10:04PM (#31140615)
Let me answer for OP. Because all these lectures are actual recorded lectures that have been uploaded to YouTube.
Re:I stopped working on black hole information loss by rrss on Saturday April 23, 2022 @11:28AM (#31135074)
> Scientific outreach has a real “draw the rest of the owl” problem

It seems like this is just the “you need to study the problem and it’s dependencies for many years to understand the physics and mathematical details” problem. Which does not actually seem like much of a problem to be solved, just a reality.

Your example in the other comment depends on linear algebra, so ~first year undergraduate of most technical fields. IMO that’s fundamentally more accessible than the black hole information paradox, with its dependencies on general relativity and quantum field theory.

I’m sure more technical videos and posts could be made about this, but how small would the target audience be?

Re:I stopped working on black hole information loss by headsoup on Sunday April 24, 2022 @08:09AM (#31143293)
> It seems like this is just the “you need to study the problem and it’s dependencies for many years to understand the physics and mathematical details” problem. Which does not actually seem like much of a problem to be solved, just a reality.

Which is exactly the "draw the rest of the owl" problem. Something that takes substantial time, skill and knowledge to achieve is demonstrated as "three easy steps."

Re:I stopped working on black hole information loss by mungal on Saturday April 23, 2022 @11:45AM (#31135261)
I wonder if we’re in agreement?

The key word is ‘numerical’.

Maybe you’ve yet to see or do numerical analysis of both general relativity and quantum field theory but they are in fact both linear algebra.

Which as you point out is “fundamentally more accessible”.

Re:I stopped working on black hole information loss by oefrha on Saturday April 23, 2022 @02:06PM (#31136672)
As a physicist who used to work on unifying QFT and gravity, no, QFT is not accessible at all, to anyone. General relativity is kind of accessible to a non-physics student if they otherwise have a strong math background, which is like 0.001% of the population, optimistically.
Re:I stopped working on black hole information loss by sonofaragorn on Saturday April 23, 2022 @04:21PM (#31138123)
All these topics are so advanced that even for someone trained in one it would take years to become proficient in the other.

Source: I'm a Physics PhD

Re:I stopped working on black hole information loss by a9h74j on Saturday April 23, 2022 @09:05PM (#31140290)
Fun fact: When I was in a highly respected grad school in the 1980s (multiple Nobel Prize winners in the department), the QFT course was presented in such an obscure way, I stopped attending lectures, and I doubt anyone passed. The next year under "QFT" they taught Ashcroft -- i.e. a Solid State Physics course. That way requirements were met.
Re:I stopped working on black hole information loss by oefrha on Saturday April 23, 2022 @10:24PM (#31140732)
I took QFT in college and then grad school in two of the leading institutions in HEP. I can’t say the instruction was very enlightening in either place. Whichever path you take (not sure what you had in the 80s, I’m thinking of Peskin & Schroeder / Schwartz / Weinberg, maybe even supposedly easier textbooks like Nutshell) it’s just a very dense subject.

Now, GR or at least the core of it is a lot easier as long as you’re mathematically prepared for differential geometry.

Btw, I took particle physics from the Peskin in Peskin & Schroeder when I was an undergrad. Everyone in the class (like four of us by the third week?) was super duper lost by midterm.

Re:I stopped working on black hole information loss by paulpauper on Saturday April 23, 2022 @10:44PM (#31140823)
yeah like this for anything. String theory is easy if you're mathematically prepared by being a field's medalist
Re:I stopped working on black hole information loss by oefrha on Saturday April 23, 2022 @11:03PM (#31140929)
Having attended many IAS talks, I don’t think string theory is easy for the likes of Ed Witten.
Re:I stopped working on black hole information loss by wiz21c on Saturday April 23, 2022 @03:37PM (#31137683)
0.001% is already about 800_000 people :-)
Re:I stopped working on black hole information loss by zuminator on Sunday April 24, 2022 @01:50PM (#31146395)
80,000. And imagine, QFT is even harder than percentages!
Re:I stopped working on black hole information loss by wiz21c on Friday April 29, 2022 @09:56AM (#31205137)
I wonder how many people on earth can compute 8_000_000_000 * 0.001% 'cos obviously I'm not in that part :-)
Re:I stopped working on black hole information loss by noslenwerdna on Saturday April 23, 2022 @01:24PM (#31136239)
General relativity is not linear algebra. Just glancing at the underlying equations, you can see they are non linear. [https://en.wikipedia.org/wiki/Einstein_tensor]

The same is true for quantum field theory. I'm curious why you're so confident that they are "in fact both linear algebra"

Re:I stopped working on black hole information loss by paulpauper on Saturday April 23, 2022 @10:46PM (#31140839)
they involve matrices
Re:I stopped working on black hole information loss by hither_shores on Sunday April 24, 2022 @09:28AM (#31143757)
They also involve addition, but that doesn't make them arithmetic. Knowing linear algebra gets you perhaps 10% of the way to having the math background for a first course in GR.
Re:I stopped working on black hole information loss by lkrubner on Saturday April 23, 2022 @12:05PM (#31135492)
General relativity is linear algebra? Has anyone called up Tullio Levi-Civita and told him that his services will no longer be necessary?
Re:I stopped working on black hole information loss by mungal on Saturday April 23, 2022 @12:35PM (#31135784)
I’ve seen this sort of reactionary response in mathematics and music as well.

When talking to a musical educator complaining about struggling students just starting out I’ll say “I found it extremely helpful to paint the C major scale on my guitar when learning music theory.”

And they respond “Well what about chromatic 12 pitch atonal music?! What would Anton Webern say?!”

Re:I stopped working on black hole information loss by wumpus on Saturday April 23, 2022 @12:50PM (#31135927)
As someone who has studied GR (at the grad school level) and music, no, that's a terrible analogy.
Re:I stopped working on black hole information loss by TheOtherHobbes on Saturday April 23, 2022 @06:40PM (#31139362)
In GR terms, Levi-Civita is more like "This is a major scale and you need to know it" than serialism.

Some subjects are just plain hard and only accessible to smart persistent people.

GR and QFT definitely qualify - but they seem to be warm up exercises compared to whatever Quantum Gravity will eventually become.

Re:I stopped working on black hole information loss by sidlls on Saturday April 23, 2022 @04:18PM (#31138098)
Eh, no. The problem with your analogy is that the “not linear algebra” bits aren’t esoteric, rarely practiced or used edge cases: they’re the core of the mathematical model.
Re:I stopped working on black hole information loss by pfortuny on Saturday April 23, 2022 @12:44PM (#31135868)
I guess you are mistaking the “local linear nature” of tensors for differential geometry. GR is certainly not “linear algebra”.
Re:I stopped working on black hole information loss by WhitneyLand on Saturday April 23, 2022 @05:33PM (#31138805)
>Maybe you’ve yet to see or do numerical analysis of both >general relativity and quantum field theory

I call you out. Don’t think you’ve done either one after reading your comments.

Re:I stopped working on black hole information loss by rrss on Saturday April 23, 2022 @12:27PM (#31135699)
No, just because general relativity and quantum field theory use linear algebra does not mean they are linear algebra.
Re:I stopped working on black hole information loss by hither_shores on Sunday April 24, 2022 @09:22AM (#31143705)
Numerical relativity is not just or even mostly linear algebra. Even in the weak-field limit, where linearized GR is qualitatively correct, you still have to actually solve the resulting PDE.
Re:I stopped working on black hole information loss by mhh__ on Saturday April 23, 2022 @11:51AM (#31135336)
They're both what now?
Re:I stopped working on black hole information loss by mungal on Saturday April 23, 2022 @12:03PM (#31135475)
Re:I stopped working on black hole information loss by pfortuny on Saturday April 23, 2022 @12:45PM (#31135882)
A tensor is a differential structure with pointwise linear properties. But the important thing is not the pointwise behavior but the differential nature of the “family of tensors in non-Euclidean space”.
Re:I stopped working on black hole information loss by hither_shores on Sunday April 24, 2022 @09:40AM (#31143895)
This is too strong. There are important fields whose points are not tensors (e.g. spinor fields) and treating them like tensor fields risks introducing all sorts of subtle confusions.
Re:I stopped working on black hole information loss by pfortuny on Sunday April 24, 2022 @11:25AM (#31144919)
Of course you are right but I was just trying to explain to OP that certainly General Relativity is not just “linear algebra”.
Re:I stopped working on black hole information loss by mhh__ on Saturday April 23, 2022 @12:31PM (#31135736)
That's very weak
Re:I stopped working on black hole information loss by mungal on Saturday April 23, 2022 @11:05AM (#31134858)
I’ll add to this to give an example of someone who I feel is doing a great job of satisfying this very request in the field of mathematics: Timothy Gowers.

His yt channel is an excellent resource of theoretical understanding through numerical methods.

Here’s my favorite series where he confirms/elucidates a “strange” theoretical fact with an explorative numerical style: https://m.youtube.com/watch?v=byjhpzEoXFs

Simply superb content.

Re:I stopped working on black hole information loss by wildmanx on Saturday April 23, 2022 @01:46PM (#31136455)
> Sabine’s niche seems to be a confident cynicism or learned skepticism and is a much appreciated addition to the space.

While I also appreciate a healthy dose of skepticism, and in weaker moments I can also get very cynical, this is not a very constructive attitude to science or life in general. If we were all doing science like that, we'd not have gotten anywhere.

As mentioned elsewhere in this discussion, a "solution" will not only consist of a theory that "solves" the problem in the sense that Sabine described, but even propose experiments that can actually be executed within a time frame (and budget) in order to validate the theory. Just because her colleagues (and Sabine herself) have failed at that so far should not be a reason to give up. With that attitude, there wouldn't be much science left today.

Re:I stopped working on black hole information loss by toast0 on Saturday April 23, 2022 @07:16PM (#31139624)
> While I also appreciate a healthy dose of skepticism, and in weaker moments I can also get very cynical, this is not a very constructive attitude to science or life in general. If we were all doing science like that, we'd not have gotten anywhere.

What I read in this article is pointing out that these black hole information loss papers are not doing science.

There are no falsifiable predictions, because we can't actually run a meaningful experiment on black holes. At least in regard to information loss. As someone else in the thread said, thinking about how things might work without a way to tell if your idea is right is philisophy. Last I heard, physics was supposed to be science and not philisophy.

Re:I stopped working on black hole information loss by wildmanx on Tuesday April 26, 2022 @04:59PM (#31173095)
Lots of results in theoretical physics couldn't be verified in experiments until decades later. It doesn't mean that it's not science if you can't make an experiment at the moment.

"Not falsifiable" commonly refers to no experiment being possible in principle. That's quite different from what you mean.

Re:I stopped working on black hole information loss by conformist on Saturday April 23, 2022 @04:13PM (#31138049)
I'm not sure whether her cynicism is helpful or not. But, style aside, it seems like it's mainly a function of whether her subfield as a whole skews optimistic?

It seems like her impression is that (parts of) the high energy theory community are too optimistic to an extent where they unintentionally or intentionally deceive the public (who are ultimately funding science through taxes).

If that's correct, perhaps it can be beneficial for science as a whole to provide a counterbalance?

Re:I stopped working on black hole information loss by johnny22 on Saturday April 23, 2022 @04:37PM (#31138267)
>> It seems like her impression is that (parts of) the high energy theory community are too optimistic to an extent where they unintentionally or intentionally deceive the public (who are ultimately funding science through taxes).

This is a fair take. I really appreciate it. Sometimes i'm too cynical about the motivations of the folks being cynical :)

Re:I stopped working on black hole information loss by Ar-Curunir on Saturday April 23, 2022 @01:56PM (#31136574)
Yeah, cynicism is actually terrible for science, and as a result many scientists aren't overly cynical. I think it's something that happens as folks mature: they tend to look for the positives in papers, rather than the negatives.

This has certainly been my experience in cryptography: as a student you often start off proposing schemes which get broken by your advisor/collaborators (not out of malice, but just because broken schemes are broken), and so you learn to react to novel ideas with "how is this broken?". However, as you mature, you realize that all new correct ideas arise from the ashes of many broken attempts, and so your reaction slowly changes to "how can I fix this?", leading to an overall more positive outlook on both your work as well as others' work.

Re:I stopped working on black hole information loss by ramraj07 on Saturday April 23, 2022 @05:10PM (#31138581)
You are partially correct, absolute cynicism would mean that you would see the possibility that any hypothesis can be wrong before testing it so you’d just not do any experiment at all. So you do need to be optimistic.

But that’s not what most scientists do today. They are cynics masquerading (even to themselves) as optimists. They have preprogrammed themselves to never even think of a question that has a good chance of failing, modern academia has collectively programmed them all to only ask questions that never have a real chance of being false to begin with. So just softball niche questions or in the case of the videos topic, reformulate the question in a way so that the answer doesn’t fundamentally solve the real problem. Both because the real problem might be unsolvable and also because if you solve the problem then you have fired yourself from yoUr job.

Now you might think I and Sabine and others are just shitting on scientists doing the work, but many of us are only doing so after wasting decades with this establishment and giving up. Perhaps you can see that for yourself earlier and save yourself a lifetime.

Re:I stopped working on black hole information loss by chevman on Saturday April 23, 2022 @09:37PM (#31140477)
Dang man, what?????? Tell us more of this tale!
Re:I stopped working on black hole information loss by goldenkey on Saturday April 23, 2022 @10:08PM (#31140640)
Duck Tales, woah oh!
Re:I stopped working on black hole information loss by throwawayrf on Sunday April 24, 2022 @03:25AM (#31141970)
> a reason to give up

I don't think Sabine is telling us to "give up". Let me give an example. Suppose there is an experiment that is solvable by building a super collider whose diameter is the diameter of the moon. Should we be rushing to fund it now? Or should we wait for lunar construction techniques to bring the costs down first?

Even a lot of physics myths around doing the hard thing to seed other tech is flat out wrong. There's an often claim that the ssc tech resulted in MRI superconducting magnets; but that tech was actually descended from NMR research done by petrochem (and if you can believe it, dairy) industries that precedes the SSC by 1.5 to 2 decades.

Re:I stopped working on black hole information loss by morelandjs on Saturday April 23, 2022 @11:54AM (#31135375)
I'll just add that I appreciate her cynicism because there is a staggering amount of bullshit in the high energy theory community. Embracing creativity is absolutely paramount, but people need to grow up and accept their own theory failures when they occur.
Re:I stopped working on black hole information loss by patrick451 on Saturday April 23, 2022 @09:32PM (#31140449)
This seems to be all of academia. Maybe high energy physics is the worst offender, but from what I saw in gradschool, you need to be half charlatan to make it as a tenured professor, otherwise your grants don't get funded and your papers don't get published.
Re:I stopped working on black hole information loss by bsder on Saturday April 23, 2022 @06:13PM (#31139150)
> Sabine’s niche seems to be a confident cynicism or learned skepticism and is a much appreciated addition to the space.

I think Sabine has settled into a niche with a few other physicists of "If you don't even have a hope of testing your theory, what's the point? Let's direct those resources into things that can be tested sometime in the next century."

Theoretical physics seems to have a few arenas where it has just completely left the realm of reality. It's not even like "Well, maybe we can test these in a few years when technology gets better" but more like "We would need 15 orders of magnitude more energy than exists in the universe to test this."

Re:I stopped working on black hole information loss by edgyquant on Saturday April 23, 2022 @02:49PM (#31137153)
It isn’t talking down to your audience to relate that mathematical logic to them in understandable ways. A lot of people are curious about physics or astronomy but don’t have the time or energy to learn high level math to do so.
Re:I stopped working on black hole information loss by mhh__ on Saturday April 23, 2022 @11:50AM (#31135319)
If you think numerical examples would help you probably need to read a quantum field theory book and understand that this is really complicated stuff.

Physicists for the most part aren't talking down spiritually, they're just talking to the equivalent of a child.

Re:I stopped working on black hole information loss by sandpaper26 on Saturday April 23, 2022 @12:52PM (#31135941)
There's a wonderful textbook, I think by Griffiths, that starts from the premise that if you learn the math of quantum mechanics first (i.e. how to actually set up and solve relevant systems of equations) then it's much easier to learn the meaning and implications after. It gives you a lot of problems up front to give you a rock-solid grounding in numerical examples, and only in part 2 does he delve into what it all means.
Re:I stopped working on black hole information loss by vmilner on Saturday April 23, 2022 @04:29PM (#31138185)
Re:I stopped working on black hole information loss by mhh__ on Saturday April 23, 2022 @01:22PM (#31136217)
His book on elementary particles perhaps?

I think there's a General Relativity book that does the same thing only with the schwarzchild solution, but I'm not sure who wrote it.

Re:I stopped working on black hole information loss by peteradio on Saturday April 23, 2022 @06:24PM (#31139225)
Yes indeed, very early on it shows the equivalence of summing over position/momentum states. Depending on the desired answer one is much easier to calculate.
Re:I stopped working on black hole information loss by mungal on Saturday April 23, 2022 @12:11PM (#31135546)
I made sure to say “outreach” stead “education”.

I think it’s a paradox to say “you need to be fully educated on a subject to engage with an explanation intended for lay people”.

Re:I stopped working on black hole information loss by gotaquestion on Saturday April 23, 2022 @11:51AM (#31135331)
> “let me explain something using terrible metaphors because I fail to understand the math myself”.

Some of these channels have millions of viewers, and the one I think you are referring to has 11M. Remember when the Reimann Zeta function summation of -1/12 was all the rage, or the Banach-Tarsky paradox? Google either of those and there are a dozen YouTube videos for each one. These are post-doctoral topics that become name-dropping buzzwords, I would never claim to understand these, yet people who watched the video do.

Which seems like a lot what the internet has given us: information, not knowledge. To quote a speaker I saw at Siggraph in ~1996, "Information is not power, knowledge is power." This hit home. We've seen it from people reading WebMD in the 2000's and then trying to teach their doctors, to the crazy scientific ignorance about mask mandates today. All because of internet edutainment or in the worst-case misinformation.

Anyway, yes, her article got cynical fast, but I think it was because she bounded with realism because plotted on the arch of technology evolution: it would take thousands of generations (even at an exponential pace) to create tech that can take actual measurements. That seems like good science to me.

Re:I stopped working on black hole information loss by gus_massa on Saturday April 23, 2022 @12:07PM (#31135510)
I agree that most videos in YouTube simplify the problem too much or are just wrong. My recommendations anyway:

* Mathologer: "Ramanujan: Making sense of 1+2+3+... = -1/12 and Co." https://www.youtube.com/watch?v=jcKRGpMiVTw

* Vsauce: "The Banach–Tarski Paradox" https://www.youtube.com/watch?v=s86-Z-CbaHA

Each one is like half an hour long, but you may need to pause them and rewatch them a few times to understand the details.

Re:I stopped working on black hole information loss by gotaquestion on Saturday April 23, 2022 @04:13PM (#31138050)
Yes, I've watched both of those. Mathologer is in the biz of math, Vsauce is in the biz of ka-ching.
Re:I stopped working on black hole information loss by mardifoufs on Saturday April 23, 2022 @04:52PM (#31138425)
I don't think the vsauce channel is egregiously monetized. He sometimes does not upload for months or even years, and does not make the most clickbaity videos out there. He could've easily been much bigger than veritasium, in terms of monthly views, if he wanted to by just making the same type of videos as he used to do ( the broad mishmash videos that I really really liked honestly).

The fact that he didn't, to me, indicates he is obviously not in the business of making money.

Re:I stopped working on black hole information loss by gotaquestion on Sunday April 24, 2022 @05:03PM (#31148320)
Yeah, that's a good point. But I always found Vsauce and Ve to be clickbaity, with the former targeted at a more educated audience. But that's my opinion.
Re:I stopped working on black hole information loss by ramraj07 on Saturday April 23, 2022 @05:15PM (#31138638)
I am a fan of her work and videos but saying We will never make experimental progress on the black hole paradox for TEN THOUSAND years seems myopic at best. Does she not instantly realize how long that is? Unless we nuke ourselves out of it, I see us as an interstellar civilization easily within 100-200 years. That’s being conservative. I’d be surprised if we don’t have probes looking around the nearest black holes or even creating ones experimentally in double or triple digit years from today.
Re:I stopped working on black hole information loss by raattgift on Saturday April 23, 2022 @09:30PM (#31140439)
The closest good candidates for stellar black holes are thousands of light-years away from Earth. There is one possible candidate at about 1.1 kly, but there are good reasons to think that it (QV Telescopii) will turn out to be something else, as seems to be the case for LB-1 *. V616 Monocerotis at ~ 3.3 kly <https://en.wikipedia.org/wiki/A0620-00> is the closest thing that is virtually certain to be a black hole.

Given measurements of the Local Standard of Rest and star surveys of the LSR neighbourhood, it is unlikely that there are any stellar-mass black holes at all within about 300 light-years of Earth (and X-Ray astronomy and microlensing/MACHO-hunting surveys each gives even more pessimistic nearby black hole numbers) so the prospects of getting a signal from an Earth probe dispatched to close to a black hole within a millennium is, pardon the pun, faint. There could be only some thousands up to a few (~10) million in the Milky Way, a galaxy of hundreds of billions of stars at this point in its evolution. There may be as many as ten billion stellar black holes in and around Milky-Andromeda five or so billion years in our future.

I note you also say "creating ones experimentally", but that is in the realm of science fiction at this stage, barely hard s.f. even for microscopic masses, and it gets decidedly soft as one climbs up the mass scale from nanograms.

Re:I stopped working on black hole information loss by ramraj07 on Sunday April 24, 2022 @08:18PM (#31149529)
Fair, is it still theoretically possible that primordial black holes of mediocre sizes are floating around?

Also of course experimental black hole creation is in the realm of science fiction but so was going to the moon 150 years back. Question is if there’s a fundamental theoretical block , similar to FTL , in achieving it?

Re:I stopped working on black hole information loss by raattgift on Sunday April 24, 2022 @09:33PM (#31149958)
Primordial black holes may be floating around, but they are very unlikely to be any to be closer to Earth than stellar black holes, given the kinematic evidence. (There could be faint hope for an isolated one of a fairly small handful within the Milky Way. FWIW, I don't think there are small PBHs. There might be gargantuan ones in the universe. There definitely isn't one of those hiding in our galaxy though, but maybe in our galaxy cluster near the centre of mass, wherever that is (millions of light years away, at least). There are some huge central black holes in some local galaxies that may have been seeded as primordial black holes -- the mechanism of growth of such ginormous black holes is not fully understood yet)). So they aren't really going to help you reach your thousand-year deadline, absent FTL travel.

Some researchers have proposed semi-seriously that there could be a small black hole lurking at the outer margins of our solar system. That obviously could be reached within a thousand years in principle (depends on how far out it is, although it must be considerably beyond Neptune's orbit), but we are perhaps decades out from a detection of it, if it even exists. The idea is, however, one of many reasons to build telescopes that are mainly to be aimed at objects in our star's immediate neighbourhood, to do very sensitive mapping of the metric the solar system sources (or, in Newtonian terms, our sun's gravitational field and the disturbances planets, asteroids, and other objects impose on it), and to do "nanolensing" observations on objects at a variety of distances. The Vera C. Rubin Observatory's Legacy Survey of Space and Time is a step in that direction, and will eliminate many possible hiding spaces for a nearby black hole.

There is an upper limit on proper acceleration proportional to mc^3/h-bar for massive subatomic particles like electrons, from Caianiello (1984) <https://doi.org/10.1007/BF02748378> (free PDF <https://link.springer.com/content/pdf/10.1007/BF02748378.pdf>) arising from uncertainty relations. We have no hope of producing that kind of acceleration as even with the best possible superconductors an Earth-bound accelerator can manage much less than a millionth of that <https://arxiv.org/abs/quant-ph/0407115>, and we need to be much closer in order to make a black hole out of small charged particles. Large particles are even harder to accelerate extremely. We also have a power-density problem: what fuels such an accelerator? Alternatively, accelerating less extremely means much longer linear accelerators, or nearly equivalently, less curvature in a ring accelerator. I think we're looking at a ring about the diameter of the orbit of Jupiter, or a linear accelerator crossing a large chunk of the inner solar system, but that's just a guess (someone has probably worked out some comparable size for ultrarelativistic heavy ions (lead or gold) though).

So the tl;dr is that it's not impossible, and it's easier than trying to throw large stars at one another, but neither is really plausible within your 1000 years. And neither is easier than sending a probe to V616 Mon. and waiting several thousand years. And we might do better by making really good observatories in and around Earth. Technically we could do all three, I guess, but we're more likely to live long enough to see improvements on the results from the <https://eventhorizontelescope.org>.

And of course, what I said about your three-digit timeframe goes double (if you pardon the expression) for your two-digit one.

Re:I stopped working on black hole information loss by ramraj07 on Tuesday April 26, 2022 @01:14AM (#31164188)
Thanks for the detailed reply, obviously I’m not from the field and most my knowledge is from YouTube so your refutations help. Will read up further for sure.

FWIW if I live long enough for someone to confirm that Planet X is a black hole I’ll strip naked and dance in Times Square because golly is that such an out of the blue hypothesis.

Re:I stopped working on black hole information loss by ramraj07 on Tuesday April 26, 2022 @06:09AM (#31165660)
Is the OMG cosmic ray particle an exception to your acceleration limit? (Sorry tried to calculate the number with wolfram alpha and got lost in the dimensions). If so perhaps there’s a possibility of using cosmic rays to get around us being unable to make such fast particles?
Re:I stopped working on black hole information loss by raattgift on Tuesday April 26, 2022 @02:14PM (#31171027)
The relevant quantity in ultra high energy cosmic rays (like OMG!) is the GZK limit (initials of a paper's authors), which is an upper limit on the energy-momentum of an intergalactic proton, set by interactions with charged matter and cosmic microwaves along the way, which transfer an UHEC proton's momentum to particles resulting from the interactions. OMG! is one of several curious possible violations of the GZK speed limit. (GZK does not deal with re-acceleration close to our galaxy via coupling to magnetic fields for instance, nor says anything about a galactic origin for something with cosmic-ray energies; it's all about how very fast protons can be slowed down over cosmological distances).

The highest energies of UHEC protons are probably not caused by "instant" accelerations as in a supernova (which certainly produces high energy protons that fly across the cosmos). Instead, they're more likely drawn up magnetically around the supermassive black holes powering active galactic nuclei (quasars, blazars and so on) and into jets, where they spend possibly weeks or accelerating through a natural counterpart to a particle accelerator which benefits from things like inverse Compton scattering (a hard X-ray from the black hole hits our proton boosting the proton's momentum and lengthening the X-ray's wavelength (i.e., reducing its momentum)).

But because we don't know OMG!'s origin, we can't say if OMG! tests any acceleration limit originating in uncertainty relations. Also, the Caianiello limit is unhealthy for protons (which OMG! likely was) staying protons: that they are composite structures makes them liable to be blown apart by extreme acceleration. Assuming it's a proton and had a blazar origin, OMG! is (really rough back-of-envelope work) likely to have fallen between 7 and 40 orders of magnitude short of the maximum (proper) acceleration. The intuition here is that OMG! is well short of Planck energy (by some 7 orders of magnitude) and super-high acceleration should take a proton from thermal energies to Planck energies. Of course a proton much closer to Planck energy could lose proportionally more along the way than a less-energetic proton, so who knows? There could be a doctoral dissertation waiting to be written on this!

Also, sorta disappointingly, OMG! could have had an electric charge greater than +1 (i.e., some ion with more than one proton) and in that case could have originated as close as our own sun <https://en.wikipedia.org/wiki/Solar_energetic_particles> <https://en.wikipedia.org/wiki/HZE_ions>.

Re:I stopped working on black hole information loss by ramraj07 on Tuesday April 26, 2022 @09:12PM (#31175117)
You are amazing and I have learned so much here, thanks!
Re:I stopped working on black hole information loss by raattgift on Monday April 25, 2022 @12:56AM (#31150864)
This line of thinking led me to a paper I had not read before (even though it has a tremendous number of citations and is reference (2) in his famous Black Hole Explosions? (evaporation) letter of 1974[1]), by Hawking (1971) <https://academic.oup.com/mnras/article/152/1/75/2604549> (PDF freely available there).

In this paper he considers the possibility that the universe is almost dominated by tiny (~ micrograms) black holes formed in the very early universe, persisting to the 1970s and leaving tracks in sufficiently large and sufficiently numerous cloud chamber detectors given sufficient time. (This was also decades before optical detectors like at SNOLAB, but incongruously after the Nobel prize for bubble chambers, although it was on the cusp of the activation of <https://en.wikipedia.org/wiki/Gargamelle> and the Big European Bubble Chamber -- he would have been aware of how close they were to activation, and results from smaller predecessors). Fascinatingly, several years after publication, conceptually similar papers were put forward for hunts for dark matter, even though it is impossible to extract from this Hawking 1971 paper that he was thinking of galactic rotation curves.

The paper also pre-dates evidence for the acceleration of the expansion of the universe, and contains the curious sentence: "An upper bound on the number of these objects can be set from the measurments by Sandage (7) of the deceleration of the expansion of the Universe." However, the excellent Allan Sandage paper of 1961 <https://articles.adsabs.harvard.edu/cgi-bin/nph-iarticle_que...> does not really let one take sides ("It suffices to say that no uncontested evidence is presently available [to choose between steady-state and expanding universe]") like Hawking 1971 seems to. Nevertheless, Hawking raises an interesting and slightly spooky premonition of dark matter at super-galactic scale, keeping clusters of galaxies looking like clusters over long periods of time, rather than separating into individual isolated galaxies: "This extra density could stabilize clusters of galaxies which, otherwise, appear mostly not to be gravitationally bound." In context Hawking was clearly thinking about a universe that grows into some very long term non-expanding/non-contracting configuration which includes clumps of galaxies.

Hawking 1971 tl;dr is "good luck actually observing these small weakly-interacting things, if they exist". Which is appropriate for 21st century particle dark matter experimentalists too. :^)

Penultimately, some patience with google scholar has found that a small handful of the many articles citing Hawking 1971 explore the idea of primordial black holes as dark matter. (but see below).

And finally, sometimes asking questions like yours (how does one build a very small black hole?) and taking them seriously leads to some very early, vague, ideas about how the universe might work in bulk, which is probably very very similar to what provoked Hawking's letter about 52 years ago.

- --

[1] https://sci-hub.se/https://doi.org/10.1038/248030a0

The relevant part of his evaporation letter: "There might, however, be much smaller black holes which were formed by fluctuations in the early Universe². Any such black hole of mass less than 10^15 g would have evaporated by now." In that context, I think a very low motivation for someone not terribly interested in the history of primordial black hole research to have previously hunted down a 1971 note whose idea was shortly thrown under the bus by its author is fairly understandable. :^)

Hawking 1971 is however an early note on primordial black holes (the only obvious earlier one in the literature is from Zel'dovich and Novikov in 1966), and that seems to be behind many of the citations I briefly sampled. Practically all also cite the more extensive follow-up Carr & Hawking 1974 "Black holes in the early Universe" <https://ui.adsabs.harvard.edu/abs/1974MNRAS.168..399C/abstra...> which is very close in submission date to the publication date of Hawking's "Black hole explosions?" yet does not appear to consider evaporation.

Re:I stopped working on black hole information loss by ramraj07 on Tuesday April 26, 2022 @01:13AM (#31164183)
One refutation I’ve heard (in YouTube videos lol) for the possibility of a swarm of “small” pbhs floating around is that if one of them passes through a neutron star it instantly becomes a black hole - thus you can’t have densities high enough that they hit neutron stars often enough to take them all offline beyond the numbers we observe..
Re:I stopped working on black hole information loss by raattgift on Tuesday April 26, 2022 @03:31AM (#31164937)
Neutron stars are rare and hard to hide (they're very bright in X-rays, and stand out against dim and dusty backgrounds, unlike isolated black holes). There are maybe low tens of thousands of neutron stars in the Milky Way (we've counted about 3000 of them).

There are hundreds of billions of regular stars in our galaxy (and in similar galaxies), some much more massive than neutron stars, and all of them have a much larger cross-sectional area than neutron stars. (NSes are tiny -- compare with New York City -- <https://commons.wikimedia.org/wiki/File:Neutron_Star_Manhatt...>) So small black holes are much more likely to collide with ordinary stars, and even Long Island NY and other comparable features on Earth, other solar system bodies, and exoplanets (we've counted five thousand of those now, and a lot of them are considerably closer than the nearest neutron star). But we see no evidence of that.

Re:I stopped working on black hole information loss by ramraj07 on Tuesday April 26, 2022 @06:06AM (#31165652)
Again pardon my amateur source of the discussion - I learned this from A PBS space time video where it was contended that a fast traveling pbh with asteroid level mass wouldn’t actually slow down and just pass through most things like planets. But not neutron stars. Also I suppose stellar cores? No idea.
Re:I stopped working on black hole information loss by raattgift on Tuesday April 26, 2022 @01:48PM (#31170696)
Although it's great that it's provoked you into asking questions, it seems like there is a lot that the PBS video must not be placing into your mind, like how these asteroid size masses are moving with respect to some local standard of rest in their region of the galaxy (and how commonplace they are) are crucial to the idea.

If they're moving gently along with all the stars in their neighbourhood, collisions between these asteroid-mass black holes and anything appreciable is unlikely (just as star-star collisions are very rare) that we wouldn't expect to see that ever happen.

Wandering pretty violently in comparison to nearby bright objects, an asteroid-sized black hole is likely to zip by a star and its satellites on a (strongly) hyperbolic orbit, like <https://en.wikipedia.org/wiki/%CA%BBOumuamua>, just dimmer. It's even less likely to hit a neutron star because of the NS's compactness, and because the geodesics it generates produces greater hyperbolicity near its surface (because that's quite near the centre of mass) than near the surface of a regular star. And hitting a sun-like star is already hard for an asteroid: <http://curious.astro.cornell.edu/our-solar-system/comets-met...> (likewise, we have never seen a small black hole flare up near our sun).

It is more likely that -- very occasionally -- an asteroid mass object (by strong equivalence principle, it does not matter if it is rocky, icy, or a black hole) is captured into a weakly hyperbolic orbit, or even an elliptical one, by a ~stellar mass. There are reasons to think an NS might be more efficient at this than a fatter star. But then you get a (possibly wide) binary star-BH that soon becomes hard to distinguish from a binary that formed together and "grew up" as stars together, with one happening to get too fat and collapse. The missing nebula in the captured-BH case would raise questions.

I don't buy the idea of a small black hole that somehow manages to slice through a neutron star doing much to the neutron star. Typically many many solar masses of matter fall back onto neutron stars after they violently form, and almost certainly there are asteroid-sized chunks of heavy atomic nuclei landing on them often. If you had some cosmic pool shark aim a small BH so precisely that it not only enters the (very very very very very small) NS core, but stays there, coming to a stop just so, the NS would collapse into the BH [1], because no matter can rest just outside the event horizon. The inner hard "platform" matter would fall in first, and in turn the freshly unsupported upper layers which had been "standing" on that platform would fall in, and so on down the widening drain. But if you shoot an asteroid-mass through an NS, it's hard to think there'd be much consequence. Sufficently slowly, there could be a nuclear explosion but probably not one that's catastrophic to the NS's integrity: I think it'd be hard to distinguish from the nuclear explosions from the rain of supernova-remnant material falling back down onto it, or random interstellar matter an isolated NS might encounter, or crustal quakes.

(I could be convinced by an academic paper equipped with an NS equation of state though (see [1] again), in principle, but very likely not a youtube video, much less a second-hand summary of one :-) ).

To a zeroth order approximation, the effect on a planet of a collision with an asteroid-mass black hole is not going to too different from the effect of a pair of collisions with ordinary asteroids (the "pair" is from the ingress and egress sides of the "tunnel": actual asteroids will tend hit a surface and stay there, or break up in a thick planetary atmosphere if there is one, etc., while small black holes will sail through). The asteroid-mass black hole will certainly create lots of electromagnetic interaction on contact; you can think of how black holes tend to have bright accretion structures, so you expect a big flashy kaboom as with a rock (but with more X-rays and gammas).

While we can resolve exoplanets, we can't quite see them being hit by asteroids, assuming the Jupiter-type exoplanets are hit with some frequency, we could blame limits in our telescopes. (JWST will help very soon!). Rockier exoplanets are no more likely to be hit by asteroids and lit up brightly than Earth or Mars. Asteroids are just tiny masses compared to these bodies.

- --

[1] fate of a neutron star with an "endoparasitic" small (and possibly primordial) black hole, that "just so" is already inside the NS: https://arxiv.org/abs/2101.12220

Re:I stopped working on black hole information loss by ramraj07 on Tuesday April 26, 2022 @09:31PM (#31175216)
Got it. The reference is great, the only final addendum I wanted to mention was whether a neutron stars densities would stop a black hole in its tracks since the paper only talks about the black hole already having been there. (At least to remove the amateur recollection of mine from the reference link, the mention of this possibility happens in the video at 6:18 https://youtu.be/qy8MdewY_TY ) and here’s them talking about a BH punching through earth which seems roughly in line with what you say as well! https://youtu.be/AK44wAvv2E4
Re:I stopped working on black hole information loss by TillE on Saturday April 23, 2022 @09:43PM (#31140509)
Popular science has leaned heavily on terrible, unhelpful metaphors for decades, long before any YouTube channel existed.

Of course you can't quickly teach the general public the actual math of quantum mechanics or whatever, but I think it's far far better to explain things in simple terms without further complicating the subject with awkward analogies.

Re:I stopped working on black hole information loss by squeaky-clean on Saturday April 23, 2022 @01:54PM (#31136539)
Check out the youtube channel Physics Explained. I don't think you can get much simpler than his videos yet still be numeric. They're great videos though, not pop-sci at all and his explanations are great. But don't expect something you can watch casually.
Re:I stopped working on black hole information loss by dj_mc_merlin on Saturday April 23, 2022 @10:17PM (#31140696)
This is like having someone try to explain what a database is in layman's terms, and then having a member of the audience who has written one HTML webpage demand code. They simply do not even have the basic blocks needed to comprehend databse code down: variables, types etc.

You cannot teach them that in any acceptable length of time. Just showing code and pointing at various parts: "this does x", "this other thing does y" is no more useful than using abstract art: the subtle syntax and semantics you are so accustomed to interpreting that you do not even notice it (array subscripts, point dereferences, etc.), they cannot even realize is there.

This is why science educators don't show the math. They're not talking down because they want to, but for the same reason you can't explain object relational impedance mismatch to a 7 year old.

Re:I stopped working on black hole information loss by zone411 on Saturday April 23, 2022 @06:26PM (#31139232)
Her video on the Simulation Hypothesis was very poor https://lech.substack.com/p/sabine-hossenfelders-video-the-s....
Re:I stopped working on black hole information loss by astrange on Sunday April 24, 2022 @09:38AM (#31143873)
The responder appears to consider Nick Bostrom an actual philosopher instead of some sort of AI-worshipping SF writer which is never the impression I'd gotten.

> Classic Poisoning the Well fallacy. The audience will be predisposed to compare the hypothesis to religion and not take it seriously before any argument is even made.

Why shouldn't you take religion seriously? Pretty rude to religions.

> There are many theories in theoretical physics where it is very difficult or impossible to come up with experiments to prove or disprove them, e.g. Everett’s Many-Worlds Interpretation or the String Theory. One might call these sorts of theories metaphysical, fine, but it doesn’t make them into disproven pseudoscience or religions.

On the other hand, yes it does do that, which is one of her most common points.

> Again, it doesn’t mean much that nobody currently knows how to do it. No practical quantum computers exist yet, so obviously, nobody tried to run anything useful on them and more quantum algorithms will be found that run with lower time complexities than on classical computers.

This doesn't help him because there aren't any algorithms that are uncomputable on classical computers but computable on quantum computers. She's also correct than quantum computers are special-purpose things and otherwise fairly useless.

Though I don't know why the universe wouldn't be a computable function if you allow the computer to have a true random number generator.

Re:I stopped working on black hole information loss by hither_shores on Sunday April 24, 2022 @09:52AM (#31143993)
Bostrom is a full professor of philosophy at Oxford. Whatever you think of his arguments (or more likely, whatever mangled summary of them you ended up getting after the internet played a multi-year game of telephone with them first), he's as actual a philosopher as any living person can be.
Re:I stopped working on black hole information loss by astrange on Sunday April 24, 2022 @12:14PM (#31145463)
I don’t have a degree in the field but one of my parents is a professor of philosophy and the other is a Cambridge MA in it so I think I’m qualified to disrespect him. (I can at least tell you that being a philosophy professor isn’t the same thing as being a philosopher.)

More importantly, I know that believing in superintelligence means you’ve been reading too much SF and have forgotten that things can’t exist just because you can imagine them existing. Spend any time worrying about that and next thing you know you’ll have moved to a group home in Berkeley and joined an effective altruism cult.

Re:I stopped working on black hole information loss by drdeca on Tuesday April 26, 2022 @02:34AM (#31164635)
The idea that a superintelligence (by which I mean, something more intelligent than humans in all ways that we might measure) not only wont occur (which seems likely to me that it wont), but is impossible, seems to me, quite odd?

Why would human intelligence be the absolute limit of what is possible?

Seems implausible.

Or maybe you mean something else by superintelligence, like, "more intelligent than humans in a self-improving way, and then FOOM and then it is necessarily more powerful than everything else", in which case, yeah that might be impossible (the upper bound of intelligence could perhaps be, while still higher than human intelligence, not actually all that much larger)

Re:I stopped working on black hole information loss by astrange on Saturday April 30, 2022 @06:50AM (#31214960)
> Why would human intelligence be the absolute limit of what is possible?

I'm willing to accept that intelligence exists insofar as it's the difference between a human and a gorilla. But is that something you can have "more" of?

That concept implies humans are smarter just because their brains have more IQ, but maybe it's a single fixed function - so the gorilla has 0 intelligences and the human has 1 - then something with 2 isn't a superintelligence, it's more like a conjoined twin and would just find it wants to do two things at once and can't.

But maybe superintelligence means someone who can think more quickly than you. So maybe that's about as scary as Magnus Carlsen or Terry Tao, but outside chess we already have calculators, and people who do math by hand don't seem to fear calculator users as superintelligences despite their superior results. In the real physical world, thinking faster doesn't necessarily get you better results because you still have to be correct, which means guessing and checking, so maybe it's the super-patient person we should be afraid of.

Admittedly neither of those are proofs it's an impossible concept, just some plausible alternatives.

> Or maybe you mean something else by superintelligence, like, "more intelligent than humans in a self-improving way, and then FOOM and then it is necessarily more powerful than everything else"

Yes, I believe this scenario they're worried about is impossible because something will always appear that prevents it, and they've left all possible somethings out of their scenarios because they are only imagining them and not actually testing them.

Such things would be entropy, energy consumption, communications delays, self-interest, "self-improving" turning out impossible due to Goodhart's law, etc. Examples of it not happening are large corporations (which always eventually stop growing, need constantly increasing inputs, and are actually composed of lots of smaller intelligences that don't all have the same goals), and the Mind AIs in Culture books (which have to be held back to even want to think about reality, and if they get too smart immediately stop caring about reality and just think about math forever).

Re:I stopped working on black hole information loss by drdeca on Sunday May 01, 2022 @03:15AM (#31222879)
It seems like you are contrasting the "person who thinks faster" against the super-patient person, but, to me, it seems like they go hand in hand.

Thinking faster isn't synonymous with being more likely to take risky mental shortcuts.

Imagine a person who, for every hour for us, experiences an entire year's worth of time (and they can make/review notes on their ideas as quickly, compared to their experience of time, as we can compared to our experience of time. So they aren't limited to being able to keep a small amount of information in working memory.).

Would we not expect such a person to be able to consistently outwit us?

It seems this is enough to demonstrate it is at least a coherent concept, even if something as extreme as what I just described might not be physically possible.

(Of course, talking about subjective experience in this way might be a little bit of a distraction, as perhaps there is no guarantee that a highly intelligent (in the sense of "able to formulate plans and such in the world, etc. ) agent have any internal experience. But, it is at least easy to imagine. And, hey, maybe it does happen to be the case that any highly intelligent agent would have internal experience, idk.)

But, even if something that extreme (able to do as much planning and reasoning over the course of an hour as one of us could do in a year) is physically impossible (and I wouldn't be too surprised if it is physically impossible), I would still expect that there are things at least a little bit in that direction from us. Which, yes, might be be basically along the lines of [ (you or I) : Terry Tao :: Terry Tao : (hypothetical agent) ] (or perhaps iterating that analogy a few times, idk. Again, not sure how far from the limit humans are, it just seems implausible that humans are at the limit.) .

And, if in the same sense that Terry Tao is more intelligent than I am, there were an agent which was more intelligent than all (individual) humans, and wasn't guaranteed to have human-like goals/values, nor to value human interests highly, then yes, I do think that this could be rather concerning, depending on the size of the difference in intelligence, combined with what the strategic positions are.

> and people who do math by hand don't seem to fear calculator users as superintelligences despite their superior results.

This doesn't really seem like a serious argument to me?

Like, obviously people who don't use calculators, can, just, procure a calculator if they find lacking one has put them at a disadvantage? It seems a silly argument.

Regarding FOOM and such, yes, I'm not particularly worried about it, or in fact about AGI at all?

Also, the example of the Mind AIs in the culture books, is not evidence, because that is a work of fiction? The world is not to obligated to follow tropes from stories we tell, and stories tend to differ from reality in ways that make them better stories.

Have you tried arguing both sides of the point you are arguing?

Re:I stopped working on black hole information loss by zeroonetwothree on Saturday April 23, 2022 @08:20PM (#31140046)
Disappointing since it’s so easy to find problems with it in other ways.
Re:I stopped working on black hole information loss by BurningFrog on Saturday April 23, 2022 @09:45PM (#31140524)
My random Sabine observation is that her accent is very similar to Albert Einstein's.

It took me a while to realize why I thought everything she said sounded so authoritative :)

Re:I stopped working on black hole information loss by in3d on Saturday April 23, 2022 @06:49PM (#31139426)
I find PBS Space Time to be superior to her videos in pretty much every case.

https://youtube.com/c/pbsspacetime

Re:I stopped working on black hole information loss by in3d on Saturday April 23, 2022 @08:37PM (#31140145)
I find PBS Space Time to be better https://youtube.com/c/pbsspacetime
Re:I stopped working on black hole information loss by willis936 on Saturday April 23, 2022 @12:59PM (#31135998)
To me it seems more like she failed at creation and found an easier path forward in arson.

In a world where FUD spreads faster than truth and not everyone is an expert in every topic: her work does as much, if not more, harm than good. Particularly in fields she is not an expert in.