different tones play. its inventors use real—time data from ball—monitoring software already in use for umpire decisions. game, headset and match! what am i doing over there, though? what's he doing? in early 2020, pretty much the last thing i filmed outside of the uk — just before we were all locked inside our homes — was portl, in los angeles. spoileralert, i'm not really in the box — i'm over here! not quite a hologram but so remarkably lifelike that it really impressed me. it was a backlit cubicle and a large transparent lcd screen which really made it look like there was someone in the box. exactly two years on, i'm finally back in la and i wanted to catch up with david nussbaum to see what's happened to his idea. how have you been?