Now Playing: 4-5-13 Marketplace Tech: Ray Kurzweil on Our Brains and Artificial Intelligence

We've been reporting this week that the federal government wants to spend $100 million to unravel the complex  of the human brain. Someone else who's been thinking a lot about the brain is a guy we've wanted to speak with for a long time: The legendary inventor and futurist Ray Kurzweil. He's done pioneering work in optical character readers, flatbed scanners, electronic keyboards for musicians and beyond. Kurzweil has thought a lot about the ways technology and human beings are becoming more intertwined. And his latest book is called 'How to Create A Mind.' He tells us about an irony: While the brain's work is complex, it's based on simple components.