We're getting along so well; I trust you so much for this one second that I'm going to let you yank on me.

...I might continue to believe that there is no god even if it were proved that there is. A religious friend of mine once remarked that the concept of god is useful, because you can berate god during the bad times. But it is clear to me that I don't need to believe there is a god in order to berate him.

The problem isn't testosterone and aggression; it's how often we reward aggression. And we do: We give medals to masters of the "right" kinds of aggression. We preferentially mate with them. We select them as our leaders.

Give lab rats oxytocin and, according to that meme, they get better at talking about their feelings and sing like Joan Baez.

The frontal cortex doesn't even fully develop until age 25, which is wild!

What happened during the minutes before? That's the realm of sensory stimuli of the nervous system.

It's probably even the case that if you stoked up some Buddhist monks with tons of testosterone, they'd become wildly competitive as to who can do the most acts of random kindness.