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by clarkey252 2544 days ago
IIRC the Scientology E-Meter is quite similar to this, I can't quite remember if one spawned the other.
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The concept of having a machine that can measure X attribute from humans have probably been a thing for long before both of those. Probably the earliest example of that (I can remember from the top of my head) is finding out if someone is a witch by throwing them into water with a stone attached to them. It's just with more technology, the "tests" become more advanced/elaborate.
Indeed. See also: phrenology