"Most historians of science, when they mention Kaluza's work at all, say that the idea of the fifth dimension was a bolt out of the blue, totally unexpected and original. ...But their amazement is probably due to their unfamiliarity with the nonscientific work of the mystics, literati, and avante garde. ...because of Hinton, Zollner, and others, the possible existence of higher dimensions was probably the single most popular quasi-scientific idea circulating within the arts. ...the work of Riemann pollinated the world of arts and letters via Hinton and Zollner, and then probably cross-pollinated back into the world of science through the work of Kaluza."