Except that gdp has no conception of the impact of improved productivity. For example, cars are an incredibly inefficient and expensive transportation model fr

Except that gdp has no conception of the impact of improved productivity. For example, cars are an incredibly inefficient and expensive transportation model from a capX and operating cost perspective. Switching to a public transit model would increase quality of life, but would shrink the gdp, because the operating costs for public transit are orders of magnitude less than car-oriented transit. So even though public transit would improve efficiency, the 1st order effect would be to reduce gdp.