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Stream: theory: applied category theory

Topic: No-Go Theorem for Classical spacetimes of Quantum Systems


view this post on Zulip Ben Sprott (Oct 25 2024 at 14:15):

I have a new paper I have put together. It essentially outlines a proof that is a no-go theorem for classical spacetimes (causal structures) of quantum systems. You can find it here. It would be great to hear any discussion about it. I will try to answer any questions, but like always, fatherhood and running my startup make it so, so difficult to keep up with the really technical points that get raised. I want to thank the community for being understanding of my, at times, unprofessional posting.

view this post on Zulip Jean-Baptiste Vienney (Oct 25 2024 at 15:39):

I think it would be good for you that you understand why your paper is not something that will be considered by a mathematician as a serious math paper that is as something which could be published in a math journal. In fact unfortunately we are very far from that! Even as part of an undergrad/master/phd thesis, it would be very problematic!

Maybe there are interesting ideas, but a few things will make any mathematician (and also PhD students apparently!) trying to read it crazy. Two big points are:

(1) It is absolutely not rigorous!
(2) It is written in a (very) pretentious way!

view this post on Zulip Jean-Baptiste Vienney (Oct 25 2024 at 15:40):

But I want to say that maybe there are interesting ideas. I can't really say because it is very difficult for me to read it because of the above points.

view this post on Zulip Jean-Baptiste Vienney (Oct 25 2024 at 15:59):

Maybe you could try to address the two above points and then it will be easier to discuss about the new version.

view this post on Zulip Jean-Baptiste Vienney (Oct 25 2024 at 16:02):

It would be good if you used numbered definitions-propositons-proof-examples etc… as in any math paper.

view this post on Zulip Jean-Baptiste Vienney (Oct 25 2024 at 16:05):

Here we only have one numbered definition and not any numbered propostions, proofs, examples!

As such it looks more like a blog post than a math paper.

view this post on Zulip Ben Sprott (Oct 25 2024 at 16:25):

@Jean-Baptiste Vienney Thank you for your critique. This will help me to improve the paper greatly. My worry, as an armchair applied mathematician, is that there are bigger problems that need to be addressed.

view this post on Zulip Jean-Baptiste Vienney (Oct 25 2024 at 16:42):

These are already big problems! When I read the 7th7^{th} sentence
"This paper is going to use one of the most advanced mathematical results of 2024 to prove something surprising.", I immediately enter into "reject mode" and don't want to read what's after.

view this post on Zulip Jean-Baptiste Vienney (Oct 25 2024 at 16:45):

The issue is that when I read this I a doubt a lot that
(1) you're going to use one of the most advanced mathematical results of 2024 in a correct way,
(2) you will prove something surprising in this way.

The reason is probably that we would never find in a paper which use one of the most advanced results of 2024 in a correct way to prove something surprising a sentence like this. Because such a person would be a well-established mathematician and it is not in the customs to write like this in the academic community. The paper will just prove the surprising thing in an humble way.

And how could you use a very advanced mathematical result in such a short paper? And without any proof, let alone any proposition written in the conventional way?

view this post on Zulip Jean-Baptiste Vienney (Oct 25 2024 at 16:53):

Do you really think that your paper use one of the most advanced mathematical results of 2024 to prove something surprising?

view this post on Zulip Kevin Carlson (Oct 25 2024 at 18:19):

It's particularly annoying that you claim you're going to prove the past doesn't exist, which would indeed be surprising, but in the body of the paper you describe this result as "facetious", i.e. you don't really mean it. So what do you mean? What, if anything, do you think you've proved?

view this post on Zulip Ben Sprott (Oct 25 2024 at 19:46):

@Kevin Carlson @Jean-Baptiste Vienney Hi, yes, sorry about this. I am not sure what mood I was in when I wrote this. I see the proof as very simple. It's all that I am capable of right now. I think John Baez has said that CT proofs can come out very simple after a bunch of definitions. Perhaps that applies. I believe that the outline in the paper is enough for good researchers to begin drawing their own conclusions based on some good facts and the application I give.

view this post on Zulip Jean-Baptiste Vienney (Oct 26 2024 at 12:45):

@Ben Sprott What is the partial monoidal product on the category of monads on Set\mathbf{Set}? If you’re talking about the composition of monads, when you have a distributive law, it would be better:

view this post on Zulip Jean-Baptiste Vienney (Oct 26 2024 at 12:47):

Moreover, you should delete everything which says that monad are a highly advanced concept etc… Monads are one of the basic concepts of category theory.

view this post on Zulip Ben Sprott (Oct 26 2024 at 13:29):

@Jean-Baptiste Vienney yes, this has to go. Thank you!