I'm familiar with it. But it's definitely not the only way forward. Maybe the the most desirable way forward, but we definitely have the option to fuck up...and it looks like we are going down that road. Globalization at present appears to be teetering on the brink of collapse.

Humans have a need for fulfillment and meaning. Even if you don't have to work, most people will want to do...something. The alternative is the human equivalent to the rat utopia experiment.

Probably not as bad, but it's very common for people retiring to go through some depression due to feeling a lack of purpose.

What we'd end up doing? Who knows. Sports, volunteering, exploration, tending to nature, religion, spirituality, or learning for the hell of it are all plausible. I'm sure many would slip through the cracks too and end up miserable no matter what.

Good news bad news though... Good news we won't have to worry about this. Bad news is that's cause a dystopian hellscape is far more likely than a scarcity free utopia, imho.