I don't disagree, but I think the Darwinian part transcends the idea of incentives. You wouldn't say that a tree has an incentive to reproduce, as a byproduct o

I don't disagree, but I think the Darwinian part transcends the idea of incentives. You wouldn't say that a tree has an incentive to reproduce, as a byproduct of a Darwinian natural selection they are guaranteed to have that property. Similarly, civilizations that have economic activity are guaranteed (in a Darwinian sense) to have economic growth.