I went to another lecture yesterday... this was by Dr. Manindra Agrawal, IIT Kanpur. he's a Clay Mathematics medal winner he's very famous for cracking a fast prime no. algorithm. the talk was about Fermat's last theorem and Elliptic curves. awesome talk. the ideas were just amazing. but it was a rather high level talk. I might have understood just 20 % of the talk. i loved the idea he introduced about the addition of points on the elliptic curve. but dont ask me anything as yet... i want to read some more on this stuff. i also want to get my hands on Fermat's Last Theorem by Simon Singh.