@TheNinkyNonkyIsATardis ,
‘True - but you can airgap it. And technically you can switch everything off. Which has its own consequences.’
How would you turn off all electricity? Most large switches are electronically controlled. Also, we are so dependent on it these days. What about nuclear power stations, for instance?
‘AI can't kill all humans, because it would need access to them. I'm pretty sure there aren't enough warheads in the world that could be directed at all the separate populations of humans. And why would it? At some point AI would need some humans to keep it going if it wanted to live. It might not want to, of course. ‘
It’s the nuclear winter that would do us! Of course that has consequences for electricity too, but AI can replicate itself in minutes or hours. For us, it is 20 years plus.
I think you are right that eliminating every single human would be impossible, quickly at least, but 90-95%, not a problem.