Sometimes I've tried to argue in favor of eugenics. The usual response I got has been something like: "but what if we create a race of super-human beings that wipes us out?".
They would. That is what eugenics is. No existing people get uplifted, the turnover of population just replaces them by better people.
They would. That is what eugenics is.
It's tangential to the main topic ("why people believe a biological super-intelligence is more probable than an artificial one"), but I think that what you said it's not warranted at all.
First, we know very little about the biology of intelligence: at present we are not able to explain the current variability in human intelligence, we have even less idea how to genetically enhance it.
Second, we share a psychological unity and genetically improved humans will presumably be grown within human family, so we ha...
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