User blog comment:ElectricMayhem/Best Avenger - MCU - Round 2/@comment-24799099-20150724201517/@comment-5795364-20150725141553

Yeah, but they didn't destroy everywhere.

Besides, Ultron in the comics is a proof of how an A.I. like this works.

It never dies. It never stays in one body. It's in every piece of technology and will continue existing as long as there's technology.

And the little robots who fight for him? ARE HIM. That's part of the beauty. He's a never dying, all mighty brain.