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>I’m not sure there’s really a way to translate that effect to human beings in any ethical way, regardless of how you feel about safety.

It's unclear to me what you would want to select for. Being physically fit? Being smart? Being motivated? Being ethical? Being friendly?

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It’s not clear at all. I think we’d instead select against undesirable traits. If intelligence and fitness are too varied to select for we could select against lack of intelligence or lack of physical fitness. Say I’ve had cancer at a young age I’m out but we can’t decide on body type. I can’t even imagine how to avoid antisocial behavior, which is fine since any attempt at this Is dystopian.

All of the above.

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