Daniel Reisel came to the study of human morality by studying psychopaths at Wormwood Scrubs, one of England's most notorious prisons.

Intriguingly, he found that many of these high-security prisoners had grown up in normal, caring families.

Rather than purely being products of their environment, they seemed to be victims of their own brains.

What does that say about moral development: can people be born with a blindspot for morality?

And if so, how should we be thinking about crime and punishment?

Can empathy be taught?

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