People treat an unresponsive interface exactly the way they treat a slow pedestrian crossing: they keep hitting the button.

Humans are humans are are shockingly simple, you know, uh, if you think about the experience you have with somebody that's just trying to cross the street, if, uh, you know, if the light doesn't turn, you know, doesn't say they can walk fast enough, they'll just keep hitting that button. That's the same experience they have on the internet.