@The Pleasure Dome Hyper-advanced evil AIs, especially ones like AM, still have a lot of logical hurdles to jump before they could be considered plausible in real life, if ever. Even then, at the end of the day, the ensuing carnage would more be the responsibility of the evil and/or stupid humans who created the program than the program itself, same as any weapon of mass destruction. Holden is just a very cruel and very powerful person, something that has, does and will always exist everywhere on Earth as long as humanity does. Minus the parts where he might be a demon, but you get the idea. AM is one of many apocalypse scenarios that could happen however long from now but there are countless Holdens in existence right this second, doing what they do best.