Two leading creativity researchers, Howard Gruber and Sara Davis, have argued that the tendency to work on multiple projects is so common among the most creative people that it should be regarded as standard practice.31 Gruber had a particular interest in Charles Darwin, who throughout his life alternated between research in geology, zoology, psychology, and botany, always with some projects in the foreground and others in the background, competing for his attention. He undertook his celebrated voyage with the Beagle with “an ample and unprofessional vagueness in his goals.”
