TIL that someone wrote a whole book when the only way they could communicate was by blinking their left eyelid.
Hugin @ Hugin @lemmy.world Posts 2Comments 551Joined 2 yr. ago
Hugin @ Hugin @lemmy.world
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My uncle made one in 1985 that did blinks for clicks and looking direction for joystick control.
https://stars.library.ucf.edu/rtd/4831/