this post was submitted on 16 Sep 2025
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I don't know if there's anything specific to read. It's a basic mechanic of gears. They turn connected gears in the opposite direction. If the gear you're spinning is attached to two other gears, they'll both want to spin opposite the first gear, and the same as each other. If they're both connected they'll try to make each other spin opposite themselves too, which obviously can't happen.