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gus_massa

Re:Making Peace with the Projective Plane on Monday November 02, 2026 @06:46PM (#50345896)
It's a nice extension of the plane to get some results. For example https://en.wikipedia.org/wiki/B%C3%A9zout%27s_theorem (Gemini recommends me this video, but I didn't see it https://www.youtube.com/watch?v=5OYLnMyesX4&t ). The idea is that in the complex protective plane, two lines intersect in exactly a point, and two circles intersect in exactly 4 points (yes 4). It's very easy to count intersections there, so after you counted them there you can try to count how many of them are in the usual plane and how many are "fake" intersections in the extension.

There are many similar results, but this is one of the most easy to understand.

Re:I vibecoded a 2d pixel game in 6h yesterday on Monday November 02, 2026 @04:21PM (#50343948)
> I say 6h because it was crazy how fast I made it at that quality.

Yep, I agree. And you would not believe how crazy is the situation here in Math.

I think it's an interesting remark for a comment, but not for the title.

> Also made the ceiling block arrows now.

Nice. The arrows of my teammates still pass through the ceiling.

It would be nice that when the bats colide with the rock at the top, they go back like 1/3 of the screen and then return. I didn't understand why my teammates attacked the bat, because it was not harmful. Until I got a lucky surprise.

I killed the hydra, but I'll try to kill the big_bad_bat when I have more time.

I didn't like the 1 2 3 mechanics. I prefer to aim and shot arrows. But it falls in "it's your game, not mine".

---

Many years ago I played "BowMaster Prelude" https://www.lostvectors.com/prelude/index.html It uses flash, so it's dead now, but it's similar to https://www.lostvectors.com/bowmasterlegacy/demo/october2020...

Some ideas to copy:

* Headshot! Like x2 damage at the head, so it's important to aim.

* Bigger maps, so there is more time to shot and aim. I like the bow more than the sword. Also, you can increase the amount of (low health) enemies.

* Some magical/explosive arrows (???)

Re:US boy names that became girl names and vice versa on Monday November 02, 2026 @02:50PM (#50342664)
I mostly agree, but for example Andrea https://en.wikipedia.org/wiki/Andrea is a masculine name in Italian and a feminine name in Spanish. Here in Argentina it's mostly masculine, but if someone has many Italian ancestors, it may be masculine.

> It is part of the Italian male names ending in a, some others being Elia (Elias), Enea (Aeneas), Luca (Lucas), Mattia (Matthias), Nicola (Nicholas), Tobia (Tobias).

Re:I vibecoded a 2d pixel game in 6h yesterday on Monday November 02, 2026 @01:07PM (#50340947)
I don't care if you used 6 hours or 6 years. Is it fun?

It's weird that I must press "next" with the mouse. I prefer "only keyboard" except for the bow.

The ceiling of the cave does not block arrows.

I'll kill the hydra later...

Re:I solved my insta scraping script with API on Monday November 02, 2026 @12:57PM (#50340773)
People is friendly here if you skip marketing text like "It is not an advertising".

By the way, URL?

wrong url
You can always make another Doom clone, but in math there is(was?) a heavy culture to give a lot of importance to the fist person that proved a result and ignore most of the later work to refactor, simplify and write a graduate student book about it (that may take 10 or 20 years, and involve a few persons or teams).

Interesting year to be a mathematician.

Re:Show HN: Stories are being shadow banned from OGs on Monday November 02, 2026 @11:47AM (#50339604)
Do you mean https://news.ycombinator.com/item?id=50335480 ?

It looks like a false positive. Send an email to [email protected] so dang/tomhow can take a look.

It took me a while to understand, but they are not recycling the Hydrogen, but using Hydrogen as part of the procces to recycle rare metals.
Nah, it will dissapear in a week, like the 20 Apple anouncements just after the WWDC each year.

Go to https://news.ycombinator.com/newest and vote some good stuff.

I expected something like "Know Your Meme", but it's for a single trend.

I see a Tiramisu wall in the middle of the tray!?!?

Have you tested it with different skin colors? I expect people to gt mad if the hand has the wrong color.

Is it possible to make other patterns for eating the Tiramisu? Probably too hard, and in 2 weeks the trend will be over.

Isn't that tooooooo much Tiramisu?

Re:French national assembly votes 0.055€/GB internet tax on Monday November 02, 2026 @07:46AM (#50336099)
One of them can have a very bad diarrhea, or go to the UN meeting to protect baby seals or something.

Here we require 50%+ present and to partially approve the law 50%+ of the present. So sniping correctly, a 25% is enough.

There is a weird iteration, when on party ensure 49% of the total of positive votes. Sometimes they have a dubious 3% of the votes of abstention from other parties that is a shame/hidden way to vote in favor. The 48% MP of the other party hide nearby while there is only 49% present, but if the 3% appear then they must rush in and vote against.

49% yes --> not aproved

49% yes + 3% abstention --> aproved

49% yes + 3% abstention + 48% no --> not aproved

I'd prefer 50%+ of the total for everything. (Note that 50% is required for some special topics, so it's not ridiculous to ask it for everything.)

Is this your site?
Re:Resisting Cognitive Surrender on Monday November 02, 2026 @07:00AM (#50335691)
>> A more serious irony is that the automatic control system has been put in place because it can do the job better than the operator, yet the operator is being asked to monitor that it is working effectively.

Automatic control is good for standard case, and the expected errors. For weird cases, for now humans are better to detect them and press the big red button.

I'm not sure what you mean.

Are you using F = m * M / r^2 with and tweaked the value of M until it look right?

Or you changed the 2 in the exponent?

Some parts of the trajectories in the demo look weird for plain mM/r^2

Re:Terence Tao: The Year Math Changed Forever on Sunday November 01, 2026 @07:53PM (#50331674)
The crypto math is probably fine, probably, but the smart contracts may have bugs...
Re:A tiny Pacific country rolls out universal basic income on Sunday November 01, 2026 @06:40AM (#50324690)
This page https://wage.is/marshall-islands/ claims the average is US$168000 per year and the median US$9600 per year. [My guess is that the poverty line is close to US$5000 per year, probably higher.] This program adds US$800 per year. So it's a "universal partial basic income" instead of a "universal total basic income".

In all the discussion I remember, "universal basic income" == "universal total basic income" but perhaps I was not paying too much attention.

Try reading that sentence with "My Cousin Vinny" voice and getting him in hail again. (They even care about all-caps in text too.) It's a movie, but the legal details are quite accurate https://en.wikipedia.org/wiki/My_Cousin_Vinny#Legal_accuracy
Are you stimulating gravity from all the planets, or do you use only the nearest one?
Re:French national assembly votes 0.055€/GB internet tax on Saturday October 31, 2026 @03:32PM (#50319296)
That's strange. Here in Argentina at least half of the MP must be present[1] to get a valid vote and send it to the senate.

[1] Actually, seated in their seats! There is a detector and if they are standing they don't count as present.

How does this compare to https://github.com/yt-dlp/yt-dlp ?
Re:Ask HN: How are you using AI in your personal life? on Friday October 30, 2026 @04:08PM (#50309460)
My wife makes fake test of the topic my daughter must learn in school, so my daughter can solve them and study before the real test.

The test sometimes have errors, that adds some fun from time to time, but most of the time they are correct.

Too easy. I just stayed on the bottom and fired.

Perhaps some pumpkins can get smashed at the bottom and stay there for a few seconds so the bottom gets more dangerous.

Perhaps add from time to time a heart at the top that gives you extra health, but you must climb to get it. (In this case, reduce the hitpoints.)

Re:Tinygyn · Goiânia Isométrica on Friday October 30, 2026 @03:18PM (#50308895)
For comparison, same place in Google Maps https://www.google.com/maps/place/Square+Pedro+Ludovico/@-16...

Any backstory? Why this city? Which tools did you use?

Re:Ask HN: Hack on Friday October 30, 2026 @02:51PM (#50308487)
Some ideas in an old post by Joel Spolsky https://www.joelonsoftware.com/2001/12/25/getting-things-don...
Is there a web version? I don't like to install apps if avoidable.

When the page loads, it shows a blinking animation [1]. I didn't realize it was a loading an interactive background example. Perhaps load a default photo of the grand canyons and add a clock or something until the full version loads.

[1] In my phone in the subway, not a very good WiFi nearby.

Re:Ask HN: How do you get new readers for your blog on Friday October 30, 2026 @11:37AM (#50305456)
I'm optimistic about this one. Let's try one more time https://news.ycombinator.com/item?id=50305444
> The driver tried to verify by asking a confirmatory question from the controller. So clearly there are in fact ways to verify, even if we can not achieve 100% certainty.

Checking the same source is not a verification. (It verifies the order, not the ground reality.)

> The driver also could have refused the order to drive at normal speed, and instead follow the protocol which caps speed to 40km/h in situations like these.

I agree. It depends on the culture. I think airplane pilots have full authority to stick to the oficial procedure and are fully supported after that. I'm not sure what happens is a train driver there refuses an instruction.

Anyway, a few years ago we had a big airplane accident and part of the problem was that crew learned to ignore the alarms https://en.wikipedia.org/wiki/LAPA_Flight_3142

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