HackerTrans
TopNewTrendsCommentsPastAskShowJobs

codingquark

no profile record

Submissions

I won an award from the FSF for my contributions to Emacs

protesilaos.com
335 points·by codingquark·4 năm trước·29 comments

comments

codingquark
·3 năm trước·discuss
I recommend reading part 3 at least. It will show how we came to take the second law as a theorem without ever having proved it formally.

Read it the following order:

1. https://writings.stephenwolfram.com/2023/01/how-did-we-get-h...

2. https://writings.stephenwolfram.com/2023/02/computational-fo...

3. Skip https://writings.stephenwolfram.com/2023/02/a-50-year-quest-... if you are tight on time. It helps tying things between 1 & 2.

Given the context, the thesis gives sound foundations to the second law in terms of computation. It ties in remarkably well with Cellular Automata, and feels like "how did I not see this?".

Here is my first attempt at summarising the whole thing (badly): The Second Law holds when systems are computationally irreducible for computationally bounded observers. The applicability changes based on the observers' computational capacities.

Though it might seem like "it is obvious" to many, the restatement and interpretation of the second law is quite novel. The claim is that the second law is in fact a property of computational universe.

Myself not being a physicist, I don't know how much and how well it ties with Physics Project. From a shallow perspective I am thinking "IF the universe is computational...". I have talked with some people who told me that without having established Physics Project as foundation, some interpretations of this thesis might be a bit stretched. But that is to be expected since the Physics Project is "his bet".

In any case, it seems to me that the thesis presented in https://writings.stephenwolfram.com/2023/02/computational-fo... stands on its own for all of its core ideas.