medias earlier than ever. massive implications for society. the company seems to be ignoring that. this ceo of common sense wrote the book "talking back to facebook." thanks for coming on. have i mischaracterized with this app is intended to do? >> no, i think you nailed it. this is about social media for the kindergarten set. it's basically getting hooked, kids at younger and younger ages. six, seven, eight on social media platforms like facebook. it's crazy. we don't need it. that's why the experts suggested that. >> tucker: we >> tucker: credo heavy social media use among young people t leads to social maladjustment, depressio. the implication is that it can really hurt people, gravely hurt them. why would facebook want to do it? >> because it's in their own economic best interest. you are trying to hook people at younger and younger ages to the brand and the concept. it's an economic incentive.