Ask PG: Is Ray Kurzweil full of shit?
Ray seems to have a pretty impressive list of supporters - Marvin Minsky, Larry Page, Bill Gates, Dean Kamen, Peter Norvig, Rafael Reif, Tomaso Poggio, Stephen Wolfram, Dileep George, etc. - and some high-profile detractors - Hofstadter, Kevin Kelly, Mitch Kapor, Gary Marcus, and Paul Allen.
Personally, I think a lot of his conclusions are probably inevitable in the long term - say 100 years out - but I'd guess that his timelines may be too optimistic to benefit any of us here personally. It's also hard to ignore the parallels between the Singularity and religious belief, and how that might betray wishful thinking on the part of its adherents.
Anyway, I just thought it would be interesting to hear your take on it.