Comment by Toutouxc

I had an e-scooter where a double click on the mode-select button would turn on the light and respond with a little beep. A single click would just switch the mode with no beep. To this day believe that the beep always came before the second click. I tried to trick it by clicking it once and only thinking about the second click — and the beep never came. But once I committed to the second click, I swear it would beep a fraction of a second earlier than that happened. Whatever it was that the button was connected to, it was insanely fast, just immediate. My brain had been so hardwired to expect every human-machine interface to have a delay, that the button responding immediately to the second click felt unnatural, broken, magical, and honestly kind of creepy.