The Singularity by Ray Kurzweil
This is not the Singularity of Stephen Hawking,string theory,quantum particle physics and space-time continuum, but it's not far off.This singularity is a point in time where the acceleration of AI, or "technology", basically reaches infinity- a question that's intrigued sci-fiction writers for decades, and now becoming more a question of when than how.
Biological interfaces between a human brain and superconducting memory chips - downloading a persons knowledge into a clone and superseding aging isn't impossible.
The concept of creating AI with a trillion times the intelligence of human being would logically progress rapidly to AI a trillion times a trillion and so on.
I'm sure AI would be invaluable in solving many health and energy problems but would it have spirituality, emotions, or the capability of dreaming? It's possible.
If we're so worried about AI taking over the human race, we'll probably just to have to wait for an asteroid the size of Texas to hit the planet so we can start over from cosmic scratch,... but because our human generated AI's have learned space travel...