well, alex stepha ny, author of the business of sharing: making it in the new sharing economy, and alsomelessness charity, beam. welcome to you, good to have you. let's talk about uber in these massive expectations. are they realistic? are they going to be heading to a fall given they are making such remarkable losses at the moment? they certainly are lossmaking, as you pointed out, they lost $1.8 billion last year on an adjusted basis, ithink lost $1.8 billion last year on an adjusted basis, i think investors can forgive massive losses in the company is going really quickly and i think that is really the challenge four to with their ipo story. 2017 to incredibly quickly, more than doubled, 2018 growth had fallen, 2019 quarter one, actually blood volume is down 1% year—on—year. so they're going to have to convince investors they can generate significant growth in other areas. why these companies having such crazy valuations? when the likes of uberare making crazy valuations? when the likes of uber are making such crazy losses? well, investors do like marketplace companies like sharing e