tabitha, how quick is all the development around ai?of development injust two months. yes, that was satya nadella, the ceo of microsoft's quote, and we're hearing that around many other business leaders as well. everyone's really feeling like the rush to get everybody online and connected has laid some really strong foundations for al and those sort of technologies to actually thrive, and we're quite excited to see how the progress has meant that we can see, as you've just heard before, within health but also within other areas like online learning, deliveries, business as well. give us some more examples of that, about how it can be used beyond the field of medicine. so, within online learning, i know that a lot of my friends have really benefited from support, support for the teachers and support for them, in terms of using adaptive learning, so there's a company called century tech, for example, which provides for example the students with the best next question for them depending on where they are in theirjourney, so that enables te

especially with tabitha's knee pain. it usually makes her take one step at a time.ut not today. >> i could lift my legs without a struggle. >> going forward, we hope to make more wearable devices that can help regular people in their daily lives. wearable robots are helping people with their legs and hearts. >> the tool that we saw in the video was a trial but the company has teamed up with a travel agency to launch scheduled walking tours featuring the powered gear starting this month. next we move on to innovation in displays for mobile devices and how they are improving the way people interact with and perceive the world. we meet an entrepreneur in china developing this curvedd screen. it's as thin as onion screen. 0.01 millimeters and it feels weight less. let's find out more. >> the world's first commercial device with a foldable screen hit the market in 2018. it looks like a typical tablet but comes with a twist that allows it to fold up to become a smartphone. the launch by the chinese firm beat major players like samsung and huaweii to a punch inn an industr