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Extinction can be a hard reality to confront. It’s one thing to learn about animals like the woolly mammoth or the dodo, ...

Could Homo sapiens and an archaic and now-extinct species of early human have lived alongside each other on the Indonesian island of Sulawesi more than 65,000 years ago? This is the question posed by ...

Constantly improving AI would create a positive feedback loop: an intelligence explosion. We would be no match for it.