Created by who?

> I suspect it's all an elaborate illusion.

Either the brain has a useless part, that hosts those illusions, which has no influence on other of its parts, or that part is just a regular part of the brain and physical processes that underlie those "illusions" has causal influence on brain behavior.

I find the former evolutionary unlikely. And the latter suggests that "illusions" have causal power.

“Most”? Shouldn’t it be all or nothing?

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