I think it is important to consider how the things we do today will create the future we will inhabit. Kurzweil's book is very important. You might think that the things he talks about cannot possibly happen. But then think about Moore's Law, and what that has done in one small area. That is the premise Kurzweil starts with, and he makes an attractive case for it. Still, I am skeptical because the brain is so much more complex than he seems to realize. I doubt the things he predicts will happen on his schedule. Still, this is a book that is thought-provoking.