https://www.youtube.com/watch?v=UK8Y_FDyDbg The Poincare Conjecture and Grigori Perelman In 2006 the Russian mathematician Grigori Perelman was awarded the mathematical equivalent of the mathematical Nobel prize (the Fields Medal). He declined it. In 2010 he was the first mathematician to be awarded $1 million - he turned it down. What had Perelman done to achieve such (apparently... Continue Reading →