Comment by ben_w

Apart from the fact that "working age" doesn't mean the same thing in a world that has anti-aging interventions?

Our economic system is incompatible with the next 200 years irregardless of what specifically gets invented.

At 5%/year, that's a factor (not percentage) of 17292 growth; in energy terms that's not quite boiling the oceans, but it is making the poles the only barely livable zone.

In any sense besides energy, this kind of growth implies automation that makes the meaning of work radically different than today. Human or superhuman AI would be an example of that, but the successful creation of that has other complications that we can currently only guess at with less awareness than the Victorians had of climate change or biodiversity loss.