... daysbefore the birth of Edison, before DarwinÕs On the Origin of the Species, before the germ theory of disease, before the in-vention of cheap steel, before the discovery of x-rays, beforeMendelÕs ... arti-cles addressed computers in the 21st century in some way. Unlike many oth-er technologies that fed our imagina-tions and then faded away, the comput-er has transformed our society. Therecan ... economists can ignore othercountries when they make their theo-ries. Large-scale models of the econo-my, fashionable as science back in the 1960s and nowadays still used for brute-force prediction,...