If paper clips aren’t your thing, consider this example, which I’ve adapted from Hans Moravec’s book Mind Children. We receive a radio message from an extraterrestrial civilization containing a computer program. When we run it, it turns out to be a recursively self-improving AI which takes over the world much like Prometheus did in the previous chapter—except that no human knows its ultimate goal. It rapidly turns our Solar System into a massive construction site, covering the rocky planets and asteroids with factories, power plants and supercomputers, which it uses to design and build a Dyson
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