I have recently encountered the Wolfram Physics Project
a few times, for example this
The basic idea, if I dare re-state it without any deep understanding, is that the universe
is computation at the fundamental level and the laws of nature that we have figured out
are emergent pockets of computational reducibility.
In general though, the underlying rules are being executed a very
large number of times in a computationallly irreducible way, without any shortcuts.
Particles and such are patterns in the "grid", analogous to a glider in
Conway's Game of Life.
I find this surprisingly non-crazy, especially if, as Wolfram and collaborators claim,
much of physics naturally arises in that framework.
But what do I know‽ Theoretical/fundamental physics
is not exactly my strong suit, and as always it needs to be judged on whether or not
it provides better explanations and predictions than competing theories.
If you enjoy getting your mind tickled by
abstract questions like
How fundamental are numbers?,
there are worse places to go than the world of Stephen Wolfram.