> Chiang’s much weaker at the middle level, where we consider how societies and civilizations collectively face novel technologies.

I’m not really sure this matters. The ideas are interesting for their effects on the characters of the story—going in depth on the world building outside of the characters doesn’t really mean anything. For the author’s example: yes, economic experiments and drug experiments would be cheaper, but like… so what? What does that mean for the characters in the story? His stories aren’t an exploration of ideas for their own sake, they’re created with a purpose, and this middle level world building doesn’t move that purpose forward at all.