I just learned something which while I've had my suspicions, I never had proof, until now.
It turns out that those 'Close Door' buttons in an elevator, they don't do anything. They're just there as a sort of 'placebo', something that makes you feel good but without doing anything. It gives you the feeling that you're in control of something that can be irritating, like a slow closing elevator door. Around 25 years ago, elevator manufacturers stopped hooking up the buttons because the control logic had evolved to the point where it was no longer really needed. However, the buttons themselves remained to give people a way to release frustration without the chance of actually breaking something.
OCU
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