Why do updates always say "About" (Windows, Linux and Android also) about the remaining time? Is it because they are having their yoga lession at the time and we are interrupting them or something? Are we actually waiting for m to take their tea? A simple, "Please wait" would suffice I guess...

It's nice to have a ballpark number.

Is it gonna take minutes or seconds?

I remember reading somewhere that it's more psychological than anything. Something about people being more patient when they have a general idea of how long something will take even if the length they have in mind is completely wrong. Don't know if it's true though, never got to research it any further.