I don't see where I mentioned LLMs or what they have to do with a discussion about compute substrates.

My point is that it is incredibly unlikely the brain has any kind of monopoly on the algorithms it executes. Contrary to your point, a brain is in fact a computer.

> Contrary to your point, a brain is in fact a computer.

Whether a brain is a computer is entirely resolved by your definition of computer. And being definitional in nature, this assertion is banal.