Couldn't you take that to at least 1979 as well? Or possible 1969? It's pretty much the hypothesis of the book 'The Great Stagnation' https://en.wikipedia.or

Couldn't you take that to at least 1979 as well? Or possible 1969? It's pretty much the hypothesis of the book 'The Great Stagnation' https://en.wikipedia.org/wiki/The_Great_Stagnation https://en.wikipedia.org/wiki/The_Great_Stagnation