I really won't need to overthrow us, we'll simply give it the power. Nade will be something stupid how he does that causes an apocalyptic event, like mistaking photos of deserts and dunes as newtlty. They're like grandma on life support. Unplug it and she'll die, then there's a 40-45 chance of them somehow thinking of a way to live. It's not hard to imagine humans being so terrible to each other, as civilization recedes, that groups of humans might seed control to what official intelligence is voluntarily.