mcgrady got to understand this issue we need to look carefully at it skeptically at all the differentayers. again and again technology throughout history hasn't been a manner of just what the inventors say or how you use it in a that moment or what it was when it was first in your pocket. it's a very dicey changeable shape shifting power of our lives. what would you hope, and we have a few more minutes -- how do you hope that we evil in our attitudes towards technology? >> guest: i love the question and the idea of taking a vertical book. i think there is an nlg in the book that hits it home for me and i hope that we will answer it. in the end i tried to add up what this means that scientists gave me an allergy and said we would compare technology today to the industrialization of food and just to back out what they meant by that, when we industrialized food a lot of amazing things happen like less expensive food for giving calories to more people come a survival mechanism. but when it got in the extreme it also gave the vending machine you walk down the hall and hit the button and ge