Basically higher frequencies meaning more radio bandwidth. Seems like they did this at 5-150 GHz. Infrared starting at 300 GHz means that well after you go to U

Basically higher frequencies meaning more radio bandwidth. Seems like they did this at 5-150 GHz. Infrared starting at 300 GHz means that well after you go to UV lasers pointed at phones you don't have much farther to go... Ofc, you can make more cells and more signal paths, but there is limit some point from here on.