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An approach to the fundamental theory of physics

wolframphysics.org

11–20 of 83 posts

Re: An approach to the fundamental theory of physics

#11
post #9

All: please let's not repeat the usual comments about Wolfram himself. They were a cliché on HN already a decade ago*, and many years before that on the web at large. It's a good test for the community whether we can focus on what's new/different/interesting here and resist the temptation to noise. * ( https://hn.algolia.com/?dateRange=all&page=0&prefix=true&que... )

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Re: An approach to the fundamental theory of physics

#12
post #10

Are there any well respect physicists or research groups independent of Wolfram's group who are taking this seriously or collaborating with Wolfram Physics project? I would expect something like "an here is Max Planck Institute for Physics collaborating with Wolfram Physics research project on ...". Or something of that nature. At least after all these years.

I used to work close to people who were actually somewhat close to the stuff contained in the papers. The consensus was that there is nothing of substance to engage with.

Edit: When the technical papers appeared in 2020, I personally went through them in some detail. Tl;dr there are almost no novel ideas of substance in there.

Specifically I looked at the "launch documents" provided here:

https://wolframphysics.org/technical-documents/

which, to my knowledge, still are the closest we have to a coherent description of what the grand vision is. Unfortunately I didn't keep my detailed notes, but looking specifically at the relativistic paper, it might appear substantial, but that is because large parts of it review well-known basic results in discrete geometry and causal sets. The actual content is described in a hand wavy way, with little in calculations or rigor (and some elementary mistakes, too).

The issue is that everything that goes beyond standard results is essentially wishful thinking or circular. "If my update rules are such that they produce a causal structure that corresponds to that of a 4-dimensional spacetime, then the wolfram model produces a 4-dimensional spacetime!". This would be interesting if there was any way to characterize the update rules that do so. However, there is not. There is simply the implication that since update rules are very general it must surely be possible to find one that does. Actually doing so is left as an exercise to the reader.

A prime example is in Section 3.3:

In all that follows, we shall assume one further condition on the hypergraph update rules, beyond mere causal invariance: namely, “asymptotic dimensionality preservation”. Loosely speaking, this means that the dimensionality of the causal graph show converge to some fixed, finite value as the number of updating events grows arbitrarily large.

However, abstractly defining ensembles of causal graphs that actually produce (at least with high likelihood) the causal graphs of low dimensional manifolds is exactly the core of the issue. If you are able to do that, then the standard results of causal set theory get you the rest of the way. This central difficulty is simply "assumed" to be solved. No further discussion is given on what type of update rules would actually be dimensionality preserving, nor is this identified as a key research question, nor is any evidence or heuristic provided that WOlframs approach has anything new to say on this problem.

As far as I recall the quantum mechanics paper was even worse.

Re: An approach to the fundamental theory of physics

#13
post #6

Before people get too excited about this, note that Wolfram has been on about his own fundamental theory of everything for some time, and the wider physics community does not take it seriously. His book 'A New Kind of Science' has him taking credit for others' discoveries going back to Turing. Here are two recent critiques of this work: https://www.scientificamerican.com/article/physicists-critic... https://arxiv.org…

I particularly enjoy this classic review. Very informative:

http://www.bactra.org/reviews/wolfram/

Re: An approach to the fundamental theory of physics

#14
post #7

Away from the fact that this is not taken seriously by the physics community. This is the first time we have a chance to use crypto to support a fundamental physics research \s [1] [1] https://www.wolframphysics.org/membership/

> For Kids: Junior Phyzzie

> One-time $100 donation

This actually had me laugh out loud. I must've been a poor kid

Re: An approach to the fundamental theory of physics

#15

This is a good introduction to it by Stephen Wolfram himself[0]. [0]: https://writings.stephenwolfram.com/2020/04/finally-we-may-h...

Does anyone understand this theory? When I read through it and listened to his talk, it sounded like a bunch of different ideas stitched together without an underlying explanation.

Correct me if I'm wrong, but it seems that it's a mathematical structure so open-ended that you can write most relevant mathematics in terms of it (as you can with e.g. set theory). And of course, if you can write math you can write physics.

Re: An approach to the fundamental theory of physics

#16
a better read is the discourse between D Hofstadler and Penrose as it addresses both sides of the argument with actual working theories...

And, yes it takes a while to digest...you have to invest some time in reading both authors series on the subject...but its well worth the read.

Re: An approach to the fundamental theory of physics

#17
post #5

This is a good introduction to it by Stephen Wolfram himself[0]. [0]: https://writings.stephenwolfram.com/2020/04/finally-we-may-h...

What makes it "good"?

Well, I can say I made more headway with this than with his book on the same topic that I saw at the library. In particular, this article seemed to justify the steps toward the "ruliad" a little better. Or maybe it's juuuust short enough that I didn't lose patience first.

Re: An approach to the fundamental theory of physics

#18
Despite all the negativity towards Wolfram, he’s one of the few out there whom I’m jealous about. He gets to work on his own products, gets time to develop his own theories about important stuff and using his own tools. That’s basically my dream. Who cares if at the end, his findings have “no substance”, he’s living the (nerd) dream.

Re: An approach to the fundamental theory of physics

#19
post #12
post #10

Are there any well respect physicists or research groups independent of Wolfram's group who are taking this seriously or collaborating with Wolfram Physics project? I would expect something like "an here is Max Planck Institute for Physics collaborating with Wolfram Physics research project on ...". Or something of that nature. At least after all these years.

I used to work close to people who were actually somewhat close to the stuff contained in the papers. The consensus was that there is nothing of substance to engage with. Edit: When the technical papers appeared in 2020, I personally went through them in some detail. Tl;dr there are almost no novel ideas of substance in there. Specifically I looked at the "launch documents" provided here: https://wolframphysics.org/t…

Is it just because it hasn't gotten as far as making physical predictions yet? To put it charitably it's very abstract, but I wonder exactly where the holes are that real physicists see.

Re: An approach to the fundamental theory of physics

#20
post #7

Away from the fact that this is not taken seriously by the physics community. This is the first time we have a chance to use crypto to support a fundamental physics research \s [1] [1] https://www.wolframphysics.org/membership/

As if ransomware, money laundering, pump and dump schemes, and tax evasion weren’t enough, now cryptocurrency can be used to support pseudoscience! Will the wonders never cease?

Sorry, I know this is a bit snark-heavy for HN but I can’t help but feel impressed by the way cryptocurrency has somehow succeeded in associating itself with so many ills of modern society.

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