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Re:Ask HN: What doesn't exist that should? by m463 on Tuesday July 23, 2019 @02:21AM (#20504828)
a robot-only captcha.

or a party in a box.

or huge nixie tubes based on el-wire.

or a shoe installer. Stick your feet out one by one, and it will put on a shoe each time. (perfect for next to the front door)

Re:Ask HN: What doesn't exist that should? by jessehorne on Tuesday July 23, 2019 @03:14PM (#20509351)
Honestly all of these are incredibly interesting. Have you thought much about the implementation for each? The shoe installer is something I see being fairly tricky. Which one of these would you want to see first?