Available once they manage to find a way to get past those pesky physical showstoppers, like, projecting dark onto light (not physically possible), projecting directly through a finger blocking the projector (also not physically possible) and making a Pico projector small enough to fit in the bracelet, with a high enough screen density, and a battery capable of spitting out the image without draining the battery and causing third degree burns on your wrist (not possible right now).
But I digress...
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