https://www.youtube.com/watch?v=wD4xrnzKN1Y https://www.youtube.com/watch?v=wD4xrnzKN1Y is a good exposition of his mathematical work for the non-mathematician.

https://www.youtube.com/watch?v=wD4xrnzKN1Y https://www.youtube.com/watch?v=wD4xrnzKN1Y is a good exposition of his mathematical work for the non-mathematician. His other work is better known, of course.