Every major player is working on this technology of artificial intelligence. As of now it's benign… but I would say that the day is not far off when artificial intelligence as applied to cyber warfare becomes a threat to everybody.
Of course I believe in aliens. I think it's very egocentric to think that there's nothing else with intelligence in the whole universe.
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The object of pure physics is the unfolding of the laws of the intelligible world the object of pure mathematics that of unfolding the laws of human intelligence.