Impulse control could be part of it, but it's not clear that that requires consciousness, either :) We know that perceptual awareness has some connection to bi

Impulse control could be part of it, but it's not clear that that requires consciousness, either :) We know that perceptual awareness has some connection to biology (sleep, seizures, drugs, etc), so to the extent that consciousness requires energy, it has to justify its caloric expenditure.