When people starve and have no means to revolt against their massively overpowered AI/robot overlords, then I'd expect people to go back to sustenance farming (after a massive reduction in population numbers).
A while later, the world is living in a dichotomy of people living off the land and some high tech spots of fully autonomous and self-maintaining robots that do useless work for bored people.
Knowing people and especially the rich, I don't believe in Culture-like utopia, unfortunately, sad as it may be.
