5G at MWC 2019: A little magic, a little smoke and mirrors

The scene on the big display in front of me looks like something from Grey's Anatomy. A team of doctors and nurses lean over a patient who's draped with a white cloth, while a TV screen beside the operating table displays a video of the patient's colon.Suddenly, a yellow line appears on that video, showing the doctors where to cut. A voice comes over a loudspeaker, calmly talking to the surgeons.I'm at Mobile World Congress 2019 in Barcelona, and I'm watching what's been billed as the world's first live surgery that involves a doctor assisting from a remote location. Dr. Antonio de Lacy, head of the gastrointestinal surgery service at the Hospital Clinic of Barcelona, is here at MWC, giving advice to his medical team across the city. In real time, without any lag, the team sees what he's drawing on a video of the patient's colon, which tells them exactly what to do.