4min chapter

Mind-Body Solution cover image

Kevin Mitchell: How Did Free Will Evolve?

Mind-Body Solution

CHAPTER

The Evolution of Bacteria

The brain is 2% of our body weight, and then the expenditure of energy is 20%. I mean, what does this end of evolutionary payoff at the end of the day, considering there's still billions of bacterial cells? Yeah, yeah. One answer goes like this, that it grants us a kind of behavioral flexibility that other animals don't have. So an animal may be perfectly adapted to its niche. It has all the behaviors it needs in that particular niche. But if you put them somewhere else, they'll die. Now we're not like that, right? We can adapt to all kinds of different environments and dynamically changing environments as well.

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