"[S]eemingly mundane". As in something you (a human) wouldn't need to put any thought or effort into. It doesn't actually occur to Muggles that there are things that they do that are actually hard problems for computers, even if they understand that there are all sorts of things computers can do in a flash that would exhaust their personal resources for weeks on end.

What's scary about this? I think it's pretty awesome and makes my photo collection a lot more useful to me.