One of my old math professors — Lauren Williams — got one! What a pleasant surprise. She was a delight to study under and an inspiration; I'm glad that she got recognized in an avenue like this.
What does she work on? Can you explain to non-math people why her work is interesting/cool? Would also love to see more comments from people familiar with the other genius grantees' works filling us in on "here's what they do and why it's cool."