Anticipatio s of the Reaction of Mechanical and Scientific Progress upon Human Life and Thought, generally known as Anticipations, was written by H.G. Wells. He later called the book, which became a bestseller, 'the keystone to the main arch of my work.' His most recent biographer, however, calls the volume 'both the starting point and the lowest point in Wells's career as a social thinker.' Taking the revolution in transport facilitated by the 'mechanical revolution' as his point of departure, Wells told readers they were living through a reorganization of human society that would alter every dimension of life. An academic biographer has described the degree of accuracy of Wells's predictions as 'certainly phenomenal.'