The Sci Am robot roudup - classics from Moravec and Kurzweil

In honor of the Robot issue Scientific American has assembled some classic articles ...

• Hans Moravec - sentient robots by 2050
• Ray Kurzweil - artificial sentience by 2020

Later in 2008 Kurzweil moved his armageddon out to 2045. If I personally had to pick a date I'd go for 2100 or so.