http://www.ubergizmo.com/2011/11/no-real-ai-in-the-next-40-years/
This article summarises an interview with Federico Faggin, the designer of the 4004 and Z80 microprocessors, on the subject of artificial intelligence. It is short and to the point, thought provoking, and somewhat controversial—quite a high-value read.
http://en.wikipedia.org/wiki/Federico_Faggin