> This pattern is consistent with the weak-link hypothesis: the strong productivity gains from AI are attenuated by human bottlenecks in the production chain, with an estimated elasticity of substitution of 0.23 between AI and human effort, which indicates strong complementarities.

This vibes with my experience using Ai for development (sentence before too)

> We further confirm these results across four major software marketplaces, finding a sharp increase in the number of new apps but no increase in total usage.

sounds about right for a hype cycle