Was it 1971 or 1947? https://marginalrevolution.com/marginalrevolution/2024/08/was-the-great-stagnation-originally-a-problem-of-human-capital.html
May be related to 1946…
https://open.substack.com/pub/mylistens/p/what-if-there-were-no-ex-presidents?r=jkqt8&utm_medium=ios