Space travel

This article is very long but it goes into some detail on space travel and its difficulties. Kaku writes very clearly and although you don't have a clue about the physics you can follow his thoughts. There is a more interesting article on kurzweilai.net called parallel universes, the Matrix and superintelligence, which I had read before but I couldn't get the page to open. It includes a post from a person who claims to have come back from the dead! Makes some of the May 22 posts seem sensible in comparison.

I've read Kaku is to front a four part series on time on BBC 4 this February. He has already been on the BBC. He seems to be a very good communicator.