Either way, I’m all for laser monitored keyboard. If nothing else then just for the reactions of others when I bring my laptop and a USB-corded keyboard and start typing on the external keyboard without plugging it in :)
(Although I guess, there’s a pretty high chance they will just assume that the keyboard simply has Bluetooth and that that is how it’s working even though not plugged in.)
take out a blank sheet of paper, draw a game pad with controls, start playing a game on screen by tapping those buttons you just drew
edit:
combine ..
Gestures from Apple Vision Pro
GenAI capabilities that can convert a sketch into a working web page
Smart Home automation
I think the point is that the keyboard itself needs 0 power, so it doesn't ever need to be tethered, recharged, have batteries replaced, etc.