I think that we are both well aware that the statement was not about "Candy Crush" or "Louis XIV". As the "America's poor have a higher standard of living than medieval kings" was not about technological progress.

Some more thoughts for you: since 19xx workers are productive to the scale of 10x (feel free to downplay it to whatever factor over 3x as this is the minimal amount, everyone agrees on except of those that harvest the difference) against those times. But we are still working 8/8/8. Who takes the difference? Of 10x (or 3x)?