INTELLIGENT ROBOTS IN SPACE: “The existence of a race of sentient alien robots might be not just possible, but inevitable. In fact, we might be living in a ‘postbiological universe’ right now, in which intelligent extraterrestrials somewhere have exchanged organic brains for artificial ones.” They’re probably living in advanced virtual-reality universes, where they engage in the alien equivalent of sex with supermodels, which also explains why we never hear from them.