Today was the last day of the topology class I’ve been teaching. I decided to devote the day to the Poincaré conjecture. I started by telling the students a little about the history of the problem. Then I showed them three videos.

The first video was an excellent 50-minute lecture by Fields medalist Curt McMullen from October 11th, 2006. It is part of the Science Center Research Lecture Series at Harvard. It was intended for a general audience. I highly recommend watching this.

Then, for fun, I showed them Steven Colbert’s plea for his own Fields medal and a rap about Perelman’s proof.

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