Bostrom’s trilemma takes strong AI as a given. Maybe it should be called a quadrilemma, with strong AI as the fourth leg of the stool. But for most of those following what Bostrom is saying, strong Al is taken for granted.

William Poundstone, The doomsday calculation: How an equation that predicts the future is transforming everything we know about life and the universe, New York, 2019, p. 173