[philipov]

That all depends on how fundamental you want to be. Atomic physics used to be considered fundamental, and then we discovered something more fundamental.

We've already reached the point at which reductionism breaks down in physics: you can smoothly transform between electrons and magnetic monopoles by varying the fine structure parameter, so which one is made of which? The answer is "Whichever is more convenient at the moment." [0]

There are already nascent theories attempting to simplify quantum field theory, that could be considered fundamental, which are based entirely on geometric and combinatoric concepts where time isn't implicit in the definition of the theory (because it's just manipulations of polytopes) but where time emerges as a feature instead of being an assumption. [1][2]

[0]: https://www.youtube.com/watch?v=NZ-ElsvYKyo&index=2&list=PL3...

[1]: https://www.youtube.com/watch?v=q4Dj8fq30sk

[2]: https://www.youtube.com/watch?v=l87oICmHT2E

[foxes]

The EFThedron looks interesting, I have to check that out.