Ray Kurzweil — childhood computer geek turned author, inventor, futurist, etc. — recently appeared on Stephen Colbert’s show.

(Sorry, the video appears to be not embeddable. You’ll have to click the image above, “like our primitive ancestors.”)
Kurzweil is a man of many ideas about man and machine. He is perhaps best known for his thoughts on what he calls the coming technological singularity:
A technological singularity is a hypothetical event occurring when technological progress becomes so rapid and the growth of artificial intelligence is so great that the future after the singularity become qualitatively different and harder to predict.
~ Karl Jones