[bonoboTP]

> If the Church-Turing thesis is true, then the brain is a Turing machine / Turing equivalent

This is simply technically not true. You can look up the https://en.wikipedia.org/wiki/Church%E2%80%93Turing_thesis and it does not talk about brains, or intelligence.

[eru]

There's some generalised versions of the thesis that do.

See https://en.wikipedia.org/wiki/Church%E2%80%93Turing_thesis#V... and https://en.wikipedia.org/wiki/Church%E2%80%93Turing_thesis#P...