david: phillips matthews joins us from washington to discuss why some economists are worried technologies cause economic harm. shake out the contours of this debate for us. a lot of people think, hope for a future in which robots are doing are close, dishes, all of that. some are saying that may not be the best thing. >> that is right. it is going to automate a lot of low skilled labor. isot of inequality that happening across the world, especially when you look at the lower ends of the manufacturing sector. if robots from the a's, this is the way they think they might over the next 50 years, that is going to eliminate a lot of jobs. our estimates that are quite extreme. a u.k. centralof bankers who thinks that 80 million u.s. jobs may be destroyed in the next 50 years by robots. that is amazing. kick offtthew, you your story talking about robert gordon at northwestern university. he plays a game called find the robot. where is he in this argument? does he think robots are helping the way we live? making us more productive? matthew: he is quite as a mystic. he is of the notion -- he is pe