For modern mathematics, I think Alexander Grothendieck was one of the most influencial talents in the last century. He unified large branches of mathematics in

For modern mathematics, I think Alexander Grothendieck was one of the most influencial talents in the last century. He unified large branches of mathematics in a very short period. He was more a bird than a frog [1], however. [1] Bird vs. Frogs. https://www.ams.org/notices/200902/rtx090200212p.pdf https://www.ams.org/notices/200902/rtx090200212p.pdf