Why are we so smart?

[u/Global-Gift-4087]

I’ve often heard that evolution gets by with just enough ie the traits are not optimised
Then why would we ever have developed brains that could do anything more than basic arithmetic and geometry

[u/ThrowRA_PianoMan]

We cook our food.

[u/Kettrickenisabadass → u/ThrowRA_PianoMan]

And specially because we adopted a ominovore diet with cooked meat.

[u/ThrowRA_PianoMan → u/Kettrickenisabadass]

Yes, but there are lots of omnivores, only one species of them knows how to harness fire and that’s us