I do feel like, given the very long history of sustained growth, it’s on the sceptic to explain why their proposed bottleneck will kick in with explosive growth but not before. So you could state my argument as: raw materials never bottlenecked growth before; no particular reason they would just bc growth is faster bc that faster growth is driven by having more labour+capital which can be used for gathering more resources; so we shouldn’t expect raw materials to bottleneck growth in the future.
Gotcha. I think the main thing that’s missing from this sort of argument (for me to be happy with it) is some quantification of our evidence. Growth since 10k years ago has been 4-5 OOMs, I think, and if you’re just counting since the industrial revolution maybe it’s going to be a bit more than half of that.
So with that kind of outside view, it would indeed be surprising if we ran into resource bottlenecks in our next OOM of growth, and <50% (but not particularly surprising) if we ran into resource bottlenecks in the next 3 OOMs of growth.
(I think epoch’s paper on this takes a different approach and suggests an outside view of hyperbolic growth lasting for ~1.5y OOMs without bottlenecks, because that was the amount grown between the agricultural evolution and the population bottleneck starting. That feels weaker to me than looking at more specific hypotheses of bottlenecks, and I do think epoch’s overall view is that it’ll likely be more than 1.5 OOMs. But wanted to flag it as another option for an outside view estimate.)
Gotcha. I think the main thing that’s missing from this sort of argument (for me to be happy with it) is some quantification of our evidence. Growth since 10k years ago has been 4-5 OOMs, I think, and if you’re just counting since the industrial revolution maybe it’s going to be a bit more than half of that.
So with that kind of outside view, it would indeed be surprising if we ran into resource bottlenecks in our next OOM of growth, and <50% (but not particularly surprising) if we ran into resource bottlenecks in the next 3 OOMs of growth.
(I think epoch’s paper on this takes a different approach and suggests an outside view of hyperbolic growth lasting for ~1.5y OOMs without bottlenecks, because that was the amount grown between the agricultural evolution and the population bottleneck starting. That feels weaker to me than looking at more specific hypotheses of bottlenecks, and I do think epoch’s overall view is that it’ll likely be more than 1.5 OOMs. But wanted to flag it as another option for an outside view estimate.)