We can't even predict/understand our current world, yet alone the world in 20 years.

Even if we get to one GPU pe person, it's not like that's the end state, the world constantly changes and will constantly evolve. If it stagnates too long, people get bored and a revolution would happen.

So, whatever that world would be, it would be temporary too

I think the point of stories like these is to accept that the world is too complex to fit into a story but we can try to fit a part of it anyway and we might learn something from it or at least get an interesting experience.

Boredom may cause teenagers to commit acts of vandalism; it’s not a typical cause for revolution. (That would be things like famine, gross inequality, severe injustices and so on.)