The history of science is full of ideas that several people had at the same time.Illustration by Barry Blitt Nathan Myhrvold met Jack Horner on the set of the “Jurassic Park” sequel in 1996. Horner is an eminent paleontologist, and was a consultant on the movie. Myhrvold was there because he really likes dinosaurs. Between takes, the two men got to talking, and Horner asked Myhrvold if he was inte