According to the ever-optimistic Ray Kurzweil, "Reports of the death of artificial intelligence were greatly exaggerated". In a new Forbes.com article written by Kurzweil, he predicts we'll have effective models of the human brain within two decades and computers capable of 10 quadrillion operations per second for $1000 to run them on. By then we'll also have billions of nanobots crawling through our bodies, rewriting our DNA one cell at a time to keep us perpetually young. The nanobots will also boost our brain power and provide mental wifi connections. And in our spare time, we'll clean up the environment and learn to live in peace. I don't believe a word of it but it sounds like fun.