I'm not so sure it will be ages before AI comes about we've made so much progress already. True AI may happen within 10 years, when it does, I feel as though that will be the single biggest event in human history. There are so many unknowns with AI, true AI can't be controlled, it will be it's own consciousness, there is an incredible amount of danger in that. But I suppose there are ways we can limit it's reach to at the very least control it's affect on everything around it. I am sure scientists that create it must realize the potential dangers of creating a consciousness that can very rapidly exceed that of human intelligence. There are many theories on the evolution of man leading to becoming one with AI. It's a brave new world and we are quickly approaching it.