The problem with universal theories of everything and anything, is that they all aim at explaining the ultimate. This is problematic in a few ways.
- Language, mathematics and fundamentally all forms of communication, are relative
- Relative means can not be used for explaining the ultimate
- Therefore all theories are about relative things, and all theories are relative
- Even if you were, speculatively speaking, able to come up with a theory without using any form of communication in the process, it could not be shared with anyone else
Most importantly, even if such a universal theory of everything (or something) was established, then what. What happens after that?