It doesn't have to be such a doomsday scenario, like in the movie Terminator machines starting war and wiping us out with nukes. Possibly humans might just gra

It doesn't have to be such a doomsday scenario, like in the movie Terminator machines starting war and wiping us out with nukes. Possibly humans might just gradually fade away and be replaced with something better. For example superhuman AI could be so entertaining that we simply forget to make kids and die out within a generation (the AI could be 1000000 times more entertaining than kids or sex). It sounds horrible, but I think that is just some kind of human fallacy. To put things in perspective: everyone who has lived 200 years ago has died by now. I don't think many people are overly saddened by that fact. Likewise, while dinosaurs are still prominent in our thoughts, few people are REALLY sad that they all went extinct. It's possible that machines might actually carry further a lot of things we appreciate in the human race (capability for love, imagination, I don't know...). No guarantees, though.