Hawking's point, though, was that it only takes one renegade to start on the track of deliberate genetic improvement, then they'll outcompete and displace the u

Hawking's point, though, was that it only takes one renegade to start on the track of deliberate genetic improvement, then they'll outcompete and displace the unimproved humans. That may well happen, especially among countries with looser ethical standards than most of Western civilization.