@akhilrao (epilogue: i think a key question is, would we WANT "productivity" in the tangible-outputs-to-inputs sense to increase in a sector. in the infamous string quartet example, the answer is "no" — by assumption, people don't want recorded music, but an actual live quartet. then it's not really a cost disease, is it? we are perfectly capable playing a streamed recording, but instead we pay up for the quartet. we are valuing the quartet more highly, then, not suffering from cost disease. 1/