There is an excellent three-hour interview with technologist and futurist Ray Kurzweil available on C-SPAN. Watch now.

This rare three-hour long interview allowed him to discuss his ideas in depth and take calls from the public. The show profiles his many inventions (starting with a videotape of his 1965 appearance at age 17 on “I’ve Got A Secret” with Steve Allen).

It also covers his career, ideas, and recent books, “The Singularity is Near: When Humans Transcend Biology” and “Fantastic Voyage: Live Long Enough To Live Forever.”