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Re:John Wheeler Saw the Tear in Reality by rbanffy on Wednesday October 02, 2024 @03:31PM (#41724241)
> It is not a phenomenon until it is an observed phenomenon.

It’s more palatable when we consider not the observation, but the information that was collapsed out of the superimposed states at the time of the observation. The universe uses lazy evaluation, and things only happen when they have effects on other things, and what we see as past depends on what we observe now, as both need to be consistent with each other.

Re:John Wheeler Saw the Tear in Reality by ricksunny on Wednesday October 02, 2024 @04:41PM (#41724786)
If I'm not mistaken some gaming physics engines work this way too, am I mistaken? Something akin to avoiding calculating the details of a voxel until it is observed by the gamer?
Re:John Wheeler Saw the Tear in Reality by inopinatus on Wednesday October 02, 2024 @05:16PM (#41725049)
Not quite like voxels, because that implies some higher existence defining a grid. Avoiding that requires a more local definition of existence in terms of adjacency.

I’ve always encoded it thus:

“All matter is information, all information is functional, and perception is therefore the lazy evaluation of the universe.”

In the Greg Egan edition of this thesis, the speed of light emerges as a property of evaluative propagation through a functional universe, and new forms of consciousness are encountered living within the algebraic structure of the cosmos.

Re:John Wheeler Saw the Tear in Reality by avaldez_ on Wednesday October 02, 2024 @05:42PM (#41725241)
Not specifically physics engines but graphics engines use "hidden surface determination" to avoid rendering what's outside the camera view. Frustrum culling, occlusion culling, LOD optimization, space-partition based clipping, etc. This video does an amazing job explaining some of those. https://youtu.be/C8YtdC8mxTU (highly recommended channel too)
Re:John Wheeler Saw the Tear in Reality by chadcmulligan on Wednesday October 02, 2024 @07:58PM (#41726058)
graphics engines do, they only display the visible pixels, the others are culled out of the calculation
Re:John Wheeler Saw the Tear in Reality by codetrotter on Wednesday October 02, 2024 @05:02PM (#41724945)
Which raises the question, if a tree falls in-game, but only non-playable characters are there. Does the falling tree make a sound when it hits the ground?
Re:John Wheeler Saw the Tear in Reality by mabster on Wednesday October 02, 2024 @05:45PM (#41725255)
In most games I would suspect the tree doesn't fall. Philosophy bypassed!
Re:John Wheeler Saw the Tear in Reality by gnz11 on Wednesday October 02, 2024 @09:45PM (#41726546)
Sound is only perceived, it’s not intrinsic to the event itself.
Re:John Wheeler Saw the Tear in Reality by codetrotter on Wednesday October 02, 2024 @10:53PM (#41726907)
Do the NPCs in the game perceive sound?
Re:John Wheeler Saw the Tear in Reality by krunck on Wednesday October 02, 2024 @04:47PM (#41724831)
> The universe uses lazy evaluation

Brilliant.

Re:John Wheeler Saw the Tear in Reality by rbanffy on Wednesday October 02, 2024 @04:51PM (#41724868)
Thank you. I doubt I’m the first, however.
Re:John Wheeler Saw the Tear in Reality by layer8 on Wednesday October 02, 2024 @05:33PM (#41725165)
The observer being part of the universe suggests that the observer becomes entangled with the superimposed states as well by the observation, and that nothing collapses.

> The universe uses lazy evaluation […]

That’s only a sensible notion if you assume that time exists outside of the universe instead of being part of it. Wheeler’s idea of space-time being non-fundamental suggests the latter.

Re:John Wheeler Saw the Tear in Reality by inopinatus on Wednesday October 02, 2024 @05:39PM (#41725215)
This may be reconciled by defining the speed of light in terms of the latency of evaluation.
Re:John Wheeler Saw the Tear in Reality by dustingetz on Wednesday October 02, 2024 @05:49PM (#41725293)
which experiment proves the universe uses lazy evaluation? this seems like interpretation
Re:John Wheeler Saw the Tear in Reality by akira2501 on Wednesday October 02, 2024 @06:12PM (#41725434)
Wheeler suggested to expand the observations of the "double slit apparatus" into the "delayed choice experiment" which was then itself expanded into the "delayed choice quantum eraser experiment." From the Wikipedia article:

"Wheeler pointed out that when these assumptions are applied to a device of interstellar dimensions, a last-minute decision made on Earth on how to observe a photon could alter a situation established millions or even billions of years earlier."

https://en.wikipedia.org/wiki/Delayed-choice_quantum_eraser

That's not to say that this is "proof" but I think this is where the notion is most directly apprehended.

Re:John Wheeler Saw the Tear in Reality by SilasX on Wednesday October 02, 2024 @06:50PM (#41725664)
Which, to be clear, then invalidates at least one of the assumptions, right?
Re:John Wheeler Saw the Tear in Reality by wholinator2 on Wednesday October 02, 2024 @06:19PM (#41725478)
It is an interpretation, the Copenhagen interpretation. There are other possibilities and nobody knows the real ground truth yet. All our speculations are just that
Re:John Wheeler Saw the Tear in Reality by medstrom on Thursday October 03, 2024 @07:36AM (#41729651)
Speculations done correctly can have a good chance to arrive at truth. That's also known as reasoning. There's probably no experimental confirming or disconfirming this, ever, but that doesn't mean all theories stand on equal ground.

After almost a century of discussions between smart people, the physics consensus has steadily inched away from Copenhagen.

That said, that doesn't mean lazy evaluation isn't happening. You just can't use lazy evaluation to "explain" wavefunction collapse, it's more the other way around, that collapse can be a lazy evaluation trick. It'd describe only this simulation and say nothing about outer reality (thus no longer works as evidence for or against the simulation hypothesis, it's just a consistent part of the story given that it's true).

Re:John Wheeler Saw the Tear in Reality by martin-adams on Wednesday October 02, 2024 @06:09PM (#41725416)
I would guess the double-slit experiment to fit this analogy.
Re:John Wheeler Saw the Tear in Reality by bwood on Wednesday October 02, 2024 @06:27PM (#41725523)
I've been compiling a list of ways in which physical reality is similar to game engines or mechanical simulation in general. Here's my list so far:

- The observer effect, quantum entanglement and wavefunction collapse --> lazy evaluation

- Speed of light --> speed of causality to resolve the object interaction problem O(n^2)

- Quanta of energy, Planck's length --> discretization of reality to limit computational precision

- Unreasonable effectiveness of mathematics --> reality is implemented with mathematics

- Parsimonious physics --> simple physical rules are less computationally expensive to evaluate

- Entropy --> stability of the simulation and a guaranteed "wind down"

Re:John Wheeler Saw the Tear in Reality by state_less on Wednesday October 02, 2024 @08:05PM (#41726089)
The simulation framing tends to draw deterministic connotations. I think when people think of a simulation or perhaps physical interpretations, they imagine life as happening to them, rather than through them. I think it’s easy to perceive it one way or the other, and what you seek you will find.

But something like ‘lazy evaluation’ could provide a bridge between the two views. A choice is made AND a physically compatible path is observed as if it were always so from the past to the present.

Personally, I think of the universe is alive with choice and we do get to participate.

PS. I kept a copy of Kip Thorne’s Black Holes and Time Warps on my nightstand as a kid - it filled me with fascination. Thanks Kip!

Re:John Wheeler Saw the Tear in Reality by szvsw on Wednesday October 02, 2024 @08:09PM (#41726109)
> The simulation framing tends to draw deterministic connotations.

I bristle at this because there is obviously a massive amount of probabilistic programming methodology and stochastic simulation techniques out there, but at the end of the day in terms of connotation you are probably correct…

Re:John Wheeler Saw the Tear in Reality by Mattasher on Wednesday October 02, 2024 @11:02PM (#41726959)
I think there's a case to be made that, if the simulation hypothesis is correct, we are god's dice[1]. We exist as agents to introduce randomness in the form of free will or enough chaos to ensure non-determinism, at least from the perspective of whatever force built this place.

[1] https://mattasher.substack.com/p/btf-6-gods-dice

Re:John Wheeler Saw the Tear in Reality by medstrom on Thursday October 03, 2024 @07:18AM (#41729523)
Sounds like anthropocentric bias. If you can implement a true RNG for some things, why not for all things?
Re:John Wheeler Saw the Tear in Reality by szvsw on Wednesday October 02, 2024 @06:39PM (#41725592)
For speed of light, a more direct analogue (though your example still makes sense) would be what is often called the “speed of sound” in numerical methods (like the finite difference method, aka FDM), which is often closely related to both temporal and spatial discretization schemes and can lead to numerical instability (cf. CFL condition, Von Neumann stability analysis, etc). It’s also related to things like stiff problems. It essentially has to do with how fast computational information propagates through the simulated domain. Note that it is still called “the speed of sound” even when you are not simulating the wave equation! (At least by my profs)
Re:John Wheeler Saw the Tear in Reality by nickpsecurity on Wednesday October 02, 2024 @08:39PM (#41726253)
Add a few more observations:

1. The laws of the universe require unimaginable power, knowledge, and precision to implement. Its Creator must have these traits.

2. It doesn’t fail. Everything humans build requires maintenance but still fails. That this universe runs with a 100% reliability rate shows its maintainer’s power, knowledge, and perfection. It also shows He is sustaining us every second. He’s thinking about and caring for His creation.

3. Humans appear hardwired to seek who God is. So, the Creator wants us to look for them.

4. Even as children, humans have basic notions of love, justice, and are relational. The Creator is a relational, moral being who wants them to think like that.

5. All life passes through genes that carry some appearance and behavior. The higher creations raise their offspring. The Creator designed us to bear children who we teach. We’re creators in a way, too.

6. Many claim the Creator reveals Himself to them. One had objective proof, power, and outcomes that back that up (eg GetHisWord.com). The Creator has purpose for us which He helpfully shares. Jesus also lived it, too, in the same flesh before dying for our sins.

Just these six suggest that, in contrast to gaming, our world is run by God who has power, omniscience, morals, and a relationship with His people. So, that says the way to win is to be close to Him (Jesus) while playing the game by His rules. Also, to enjoy learning how it works which is endlessly deep and fun. :)

In contrast, a game engine or computer doesn’t compare mostly because of how the universe works perfectly despite billions upon billions upon billions of interactions. It can’t be overstated how unlikely that is based on all observations of reality. It’s truly astounding.

Re:John Wheeler Saw the Tear in Reality by whoknw on Wednesday October 02, 2024 @10:33PM (#41726804)
If you are willing to argue in good faith (no pun intended), I'd recommend for you to read Spinoza. Spinoza builds on your argument number one and argues that there can only be one substance, and this substance is God. In a nutshell: God is everything that exists, we do not exist outside of God (we are "modes" of God, if I remember correctly). Spinoza also argues that by virtue of being the only substance, God exists necessarily and does not have a choice.

The implications of this logic create problems for the Judeo-Christian stance. Absolute morality goes out of the window and a few other things with it as well.

Re:John Wheeler Saw the Tear in Reality by nickpsecurity on Wednesday October 02, 2024 @11:12PM (#41727027)
It might be interesting to read. It's not far from my original guess about these things.

The logic wouldn't create a problem for us due to the weight of our source, the Word of God. Whatever counters it would need perfect character, prophecies that came true, miraculous power, historical evidence, and global impact on most people groups. Then, his followers would have to experience similar things on top of transformed lives. If not, his views remain pure speculation with nothing backing them like most religions and philosophies. Not threatening at all. :)

Re:John Wheeler Saw the Tear in Reality by whoknw on Thursday October 03, 2024 @12:24AM (#41727380)
That is why I prefixed my previous post with "in good faith". If you postulate that your speculations carry more weight without solid logical reasoning, that is not good faith to me.

Granted, that style of reasoning also has a long tradition in philosophers like Descartes, Berkeley, etc. Descartes famously postulates that "God is not a deceiver", and that we are dealing with a benevolent God. You make the same assumption. Back then, there had to be a God, because the church would have showed people how the afterlife looks like pretty quickly. I don't understand what necessitates such a stance today.

In any case: as long as you argue from the conclusion backwards, we can spare some ink and leave this be.

Re:John Wheeler Saw the Tear in Reality by nickpsecurity on Thursday October 03, 2024 @02:20PM (#41733356)
“ If you postulate that your speculations carry more weight without solid logical reasoning, that is not good faith to me.”

I thought my original comment had a link. We have a huge weight of evidence of various types to support God’s Word being from God. There’s usually more types for that than most beliefs people express on HN that are accepted. So, I start with that as a foundation much like proof assistants build on a core logic.

https://www.gethisword.com/evidence.html

To test your assertion, we can do simple comparisons that Christians often do to justify their beliefs. For instance, you equated our use of the Bible to Descartes stating an opinion. Did Descartes live a perfect life, claim to speak for God, and perform miracles to prove that? Did he come back from the dead? Do his followers experience unlikely transformations and life events in response to praying to Descartes? Do they get healings in the hospital verified by doctors by asking Descartes to heal the person? Would the people I’ve seen who were miracle healed have done better with Descartes?

When a philosopher or scientist counters Christ or His Word, we can just go down the list to find they don’t come close to refuting them. Christ wins the trustworthiness competition. Then, we trust Him based on that.

I would consider switching sides if the others met the same criteria. They’d have to claim to receive visions from God, their predictions come true precisely, work miracles, come back from the dead, have perfect character (trustworthy), and I’d have to get promised results following them. If not, “let God be true and every man a liar” when they contradict.

I find real science doesn’t contradict my faith, though, since it’s a pursuit of truth which God wants us to pursue. Most of it is OK or it doesn’t matter if it’s right or wrong. I can enjoy it all. :)

Re:John Wheeler Saw the Tear in Reality by anthk on Wednesday October 02, 2024 @08:55PM (#41726331)
That's a bunch of fallacies.
Re:John Wheeler Saw the Tear in Reality by nickpsecurity on Wednesday October 02, 2024 @11:27PM (#41727099)
You didn't say that about either the claims in the OP article or prior submissions with less proof of what they say. Your reaction might be emotional, not logical. I encourage you to consider it logically.

An easy test would be to find human machines that have 100% reliability without design or maintenance. Then, strong arguments that they'll remain that way for thousands to billions of years with no intelligent intervention. If you wouldn't believe that, why would you believe an atheist that says the universe's superior machinery was likewise undesigned, is unmaintained, and is accidentally perfect? That goes against everything we've observed.

We also have a guess on the computational requirements which are mind-boggling. Just simulating tiny molecular or quantum systems with total accuracy, if it's even happened, takes a ton of computation. Every sub-particle or force in the entire universe running at the same time is unimaginable computation. Plus, the Creator makes them all work exactly as desired with the same, observed patterns. We can't get cellular automata to work like we want but the Creator is directing a universe of simple interactions to cause specific behavior, global and local?

God is the best theory for these observations. That also makes Him the most interesting of all beings in existence. Since we know Him, we also worship Him on top of it. That's acquired through non-scientific means, though. He supernaturally imparts it to those who believe in the Gospel of Jesus Christ. It's more phenomenological but indirectly observable.

Re:John Wheeler Saw the Tear in Reality by Kbelicius on Thursday October 03, 2024 @04:09AM (#41728390)
> An easy test would be to find human machines that have 100% reliability without design or maintenance. Then, strong arguments that they'll remain that way for thousands to billions of years with no intelligent intervention. If you wouldn't believe that

This very much might be a failing, short lived universe. Why do you think that it isn't? Keep in mind that when we run simulation we do not usually run them in real time where one of our days equals one day in a simulation.

> If you wouldn't believe that, why would you believe an atheist that says the universe's superior machinery was likewise undesigned, is unmaintained, and is accidentally perfect? That goes against everything we've observed.

It doesn't go against anything we observed. We did not observe that the universe is a machine nor that it is perfect. All that we observed is that the universe is as it is.

> We also have a guess on the computational requirements which are mind-boggling. Just simulating tiny molecular or quantum systems with total accuracy, if it's even happened, takes a ton of computation. Every sub-particle or force in the entire universe running at the same time is unimaginable computation. Plus, the Creator makes them all work exactly as desired with the same, observed patterns. We can't get cellular automata to work like we want but the Creator is directing a universe of simple interactions to cause specific behavior, global and local?

Those computational requirements exists within our universe but if we are talking about a simulation or a creator what seems like an impossible computational requirements... maybe this universe is being ran on a their version of a calculator.

Re:John Wheeler Saw the Tear in Reality by Kbelicius on Thursday October 03, 2024 @03:55AM (#41728313)
> 1. The laws of the universe require unimaginable power, knowledge, and precision to implement. Its Creator must have these traits.

Since you are adding these observation in the context of the universe being a simulation none of the above need to be true. The one who designed the universe did not necessarily have the knowledge to implement (code the universe), build the hardware that it runs on or built the power source that is powering it all.

Why did you jump to the conclusion that it is only one person/being doing everything?

> 2. It doesn’t fail. Everything humans build requires maintenance but still fails. That this universe runs with a 100% reliability rate shows its maintainer’s power, knowledge, and perfection. It also shows He is sustaining us every second. He’s thinking about and caring for His creation.

How do you know that it doesn't fail? What would failure even look like? Wouldn't something like the heat death of the universe signify its failure?

How do you know that the universe runs with 100% reliability?

Why mention that everything that humans build requires maintenance when even the universe, by your own words, requires maintenance by its creator?

> 3. Humans appear hardwired to seek who God is. So, the Creator wants us to look for them.

Humans appear hardwired to seek explanations to phenomena. So much so that when they can not logically explain a phenomena they will make up an explanation. Isn't this more logical than your statement, if not, why?

In your point 4 and 5 you are just saying because some facts of the universe thus god.

> 6. Many claim the Creator reveals Himself to them. One had objective proof, power, and outcomes that back that up (eg GetHisWord.com). The Creator has purpose for us which He helpfully shares. Jesus also lived it, too, in the same flesh before dying for our sins.

Did not share it with me. Why?

Re:John Wheeler Saw the Tear in Reality by nickpsecurity on Thursday October 03, 2024 @08:16PM (#41736486)
Good observations. I’ll try to address a few of them.

Re reliability. We know what we can observe. We see the machinery doing billions of billions of things with perfect consistency. The amount of interactions required is staggering. Whereas, humans quit trying to prove code correct after many 10,000 lines.

The being is either keeping it running without failures being possible (God’s power) or is doing the equivalent of preventative maintenance. Both are logically possible.

Re hardwired. That is a good hypothesis. I’d counter along C.S. Lewis’s lines that some things we seek aren’t merely imaginative. We have a strong, unique urge for specific things we need or are critical to our species, like food or sex. Those urges are tied to objective, real things. Our urges for God, love, and justice are just as strong and global. That’s because we’re designed for it.

Re: how do I know. Well, there’s multiple forms of knowledge. They include evidentiary (eg historical), phenomenological (eg sensation of pain), logical, empirical, and revelatory. That last one is important because we can’t really know anything outside the universe unless told by those outside it. That God chose to reveal Himself to His creation solves some big problems we could never solve without that.

“ Did not share it with me. Why?”

He did. He works through people who carry His message of reconciliation, the Gospel. It was in the quote:

https://www.gethisword.com

His Word says God draws us to Him, faith is a gift, it comes by hearing His Word, and (per Jesus) His sheep hear His voice. If people are humble, and truly seeking Him, He supernaturally tells them the message is true. Convicted of their sin, they have a choice to make that determines if they face eternal punishment or receive the mercy of eternal life.

God could’ve made it hard. He could’ve required people to be geniuses, know important people, be star athletes, or live perfectly on their own. Instead, Christ paid the price for our sins. Then, gave anyone who acts on a simple message to be saved. Anyone who shares that message might pull others out the fire, too.

Believe, repent, and live for and like Him. He’s worth it. Hell’s not.

Re:John Wheeler Saw the Tear in Reality by codesnik on Wednesday October 02, 2024 @06:44PM (#41725622)
all the wavefunction collapses only needed to compute future/far away collapses, we are all just thunks, evaluated because we needed for the final compute.
Re:John Wheeler Saw the Tear in Reality by perryizgr8 on Wednesday October 02, 2024 @10:00PM (#41726613)
> The universe uses lazy evaluation

That's a crazy assertion to me. Is this something proven using experiments or your conjecture? I would think a pebble floating in deep space, not interacting with anything, would still exist. If you go out there you would see it having a position and velocity. That information has to be preserved and processed continuously to ensure that an observer after 10000s of years still sees a consistent state.

Re:John Wheeler Saw the Tear in Reality by jdblair on Thursday October 03, 2024 @09:11PM (#41736812)
> you would see it having a position and velocity

but not at the same time!

Re:John Wheeler Saw the Tear in Reality by doodlebugging on Thursday October 03, 2024 @01:14AM (#41727548)
If a phenomenon is not a phenomenon until it is an observed phenomenom and since the act of focusing on an observation yields information only about the phenomenon that we are attempting to observe, what happens to all the informations pilling out around it that becomes part of the unobserved phenomenon in the defocused region nearest the phenomenon that we are observing with highest focus?

Basically, is it true that nothing exists until we observe it with high enough focus that the information it contains builds its own reality. If this is true then does it mean that I need to wear my glasses all the time to experience reality and when I leave them on my desk I'm slipping thru an unfocused stream of information that only loosely defines a reality because I am unable to adequately focus on those things that I need to be observing, therefore they aren't quite definable phenomena.

Re:John Wheeler Saw the Tear in Reality by keshet on Thursday October 03, 2024 @06:37AM (#41729290)
And if I drink alcohol then my world also becomes kind of blurry.. then reality also becomes less defined? It sure feels that way. But not to my friend sitting next to me who chose not to drink. We live in separate realities at least as far as our individual experiences are concerned.