Yeah its weird. I think I had (have? I don’t remember reselling it) one, and it was a glorified remote.

Maybe you could make one that clicked (quietly, but you could feel it) if you answered right. But the one I had had pretty standard (and unchanging) feedback. If you get the stimulus every time it stops being a stimulus. The article also feels unfinished. Not just disconnected, but to me feels like it just ends. Honestly feels like a draft I’d write then decide “eh, I’m fine with a B on this”.