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> We are excited to see what you can build with it!

The killer app is typing. Qwerty would be nice for a transition, but someone please invent a gesture "keyboard" more optimal for a free floating hand. Because of the lack of feedback I imagine it couldn't be as good as an actual keyboard. But it could be brilliant as an away from keyboard keyboard.

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There's still ergonomics. Say we teach computers to recognize casual ASL (which is a big job for people learning ASL, but whatever)... You're not going to be able to spend the time using that input method you could using a keyboard, because of simple fatigue.

I am wondering if we are not too pessimistic about feedback for that application : why not use physical chord-like movements to different actions (delete characters, words, sentences) or like making distinct handsigns assigned to more used phonemes and less used one to chords of several finger joins like index / thumb, etc. Would be weird at first but, as learning vim taught me, building a coherent grammar can definitely make a big difference.

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