Oh yea, I didn’t mind the title at all (although I do think it’s usefully more precise now :)
Agreed on additively separable utility being unrealistic. My point (which wasn’t clearly spelled out) was not that GDP growth and unit production can’t look dramatically. (We already see that in individual products like transistors (>> GDP) and rain dances (<< GDP).) It was that post-full-automation isn’t crucially different than pre-full-automation unless you make some imo pretty extreme assumptions to distinguish them.
By “extracting this from our utility function”, I just mean my vague claim that, insofar as we are uncertain about GDP growth post-full-automation, understanding better the sorts of things people and superhuman intelligences want will reduce that uncertainty more than learning about the non-extreme features of future productivity heterogeneity (although both do matter if extreme enough). But I’m being so vague here that it’s hard to argue against.
Ok, fair enough—thanks for getting me to make it clearer :). So I guess the disagreement (if any remains, post-retitling/etc) is just about how plausible we think it is that the technological advances that accompany full automation will be accompanied by further technological advances that counterintuitively slow GDP growth through the “new-products-Baumol” mechanism illustrated here. I don’t think that’s so implausible, and hopefully the note I’ll write later will make it clearer where I’m coming from on that.
But this post isn’t aiming to argue for the plausibility, just the possibility. It seems to me that a lot of discussion of this issue hasn’t noticed that it’s even a theoretical possibility.
Here’s an example in which utility is additively separable, un(.) is identical for all goods, the productivity and quantity of all goods grow hyperbolically, and yet GDP grows exponentially.
Oh yea, I didn’t mind the title at all (although I do think it’s usefully more precise now :)
Agreed on additively separable utility being unrealistic. My point (which wasn’t clearly spelled out) was not that GDP growth and unit production can’t look dramatically. (We already see that in individual products like transistors (>> GDP) and rain dances (<< GDP).) It was that post-full-automation isn’t crucially different than pre-full-automation unless you make some imo pretty extreme assumptions to distinguish them.
By “extracting this from our utility function”, I just mean my vague claim that, insofar as we are uncertain about GDP growth post-full-automation, understanding better the sorts of things people and superhuman intelligences want will reduce that uncertainty more than learning about the non-extreme features of future productivity heterogeneity (although both do matter if extreme enough). But I’m being so vague here that it’s hard to argue against.
Ok, fair enough—thanks for getting me to make it clearer :). So I guess the disagreement (if any remains, post-retitling/etc) is just about how plausible we think it is that the technological advances that accompany full automation will be accompanied by further technological advances that counterintuitively slow GDP growth through the “new-products-Baumol” mechanism illustrated here. I don’t think that’s so implausible, and hopefully the note I’ll write later will make it clearer where I’m coming from on that.
But this post isn’t aiming to argue for the plausibility, just the possibility. It seems to me that a lot of discussion of this issue hasn’t noticed that it’s even a theoretical possibility.
Here’s an example in which utility is additively separable, un(.) is identical for all goods, the productivity and quantity of all goods grow hyperbolically, and yet GDP grows exponentially.