Indeed. Grothendieck is one of the few names I associate with the word "genius" without qualification. Up there with people like von Neumann and Witten. There a

Indeed. Grothendieck is one of the few names I associate with the word "genius" without qualification. Up there with people like von Neumann and Witten. There are a lot of really smart people in the world, but they stand out even among the best.