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What evidence is there to suggest evolution has resulted in optimal perception?

My use of 'optimal' is more of 'sufficient to keep reproducing given current conditions' than anything.

If you're suggesting that evolution isn't the right vehicle for this process, then we'll have to disagree.

Ah, the 'sufficient' definition of 'optimal' ;)

Yeah, sure, I can agree with that.

Evolution does appear to be the most likely candidate, yes.