Inventor Ray Kurzweil sees immortality in our future

Tonight, we hear from inventor and futurist Ray Kurzweil about immortality and the exponential growth of technology. Since 2012, Kurzweil has been a director of engineering at Google. RAY KURZWEIL, Director of Engineering, Google: Our immediate reaction to death is that it's a tragedy. We have rationalized it, saying, oh, that tragic thing that's looming, that's actually a good thing. But now we can actually seriously talk about a scenario where we will be able to extend our longevity indefinitely.