I kind of see AI as an inevitable lesson for mankind. We're a bit stupid to have let things get to where they are: environmentally, economically and socially. AI will be the stick on the backside of intelligent man saying, "Get your act together you stupid f***wit! There's much better things to do with your existence than pursue greed and control of others."
Blockchain may be a remedy for this but also blockchain itself could be the AI that we are fearing.
It could be like Dune, where we simply have to learn to improve our psycho-mental faculties without systems and machines. It makes me think of something spoken by a hopi indian chief about their capacity to hear a pocket watch ticking in a field a mile away. What have we lost by giving technology our responsibilities? And what really are we capable of?
Thats a tough one - Some say we did have these abilities, and if so to get them back would most likley be the best option.
Although i can imagine with a brain implant, WiFi and nano bots i could basically control reality - That might be better if we don't actually have those abilities.