Harari writes about this a lot in his book Homo Deus and 21 lessons. Up till now the rich and the poor still had a roughly egalitarian fundamental physical/biol

Harari writes about this a lot in his book Homo Deus and 21 lessons. Up till now the rich and the poor still had a roughly egalitarian fundamental physical/biological existence. Sure, healthcare could extend and improve one's life to some degree even in the past but everyone is still fundamentally limited by the same intrinsic constraints. Rich people don't live 3 times as long, still suffer from diseases like Alzheimer, Parkinson, cancer etc. But what if some people become fundamentally better, an actually clearly superior "race", ie the Nazi myths of superiority becoming fact (as applied to this new optimized race/new entity)? Society isn't prepared to talk about it.