joining us right now is the author of deep medicine, eric topol. good to see you.ead of the u.s. in terms of a.i. in healthcare. how, specifically? >> well, i spent the last year and-a-half as -- commissioned as a review for the government for the nhs. they started implementing a.i., getting rid of keyboards, so doctors don't do any typing, in emergency rooms, no less, patients love that because they have eye contact. reading scans, it revs up what a radiologist can do and the leader of the world in genomics. they're taking the data and they're implementing it into day-to-day practice. maria: that's exactly one of the jobs dagen that kai fu lee said would go away, radiologists. reading the radiology reading can be done quicker and easier by a machine, by a.i. dagen: how long will that be before that happens? maria: in the u.s. >> that's happening in china right now, more accurate than a lot of radiologists and of course a lot faster and a lot less expensive. but there is a concern that you want to have these algorithms at perfection level. if they're making a mista