I free with the point you made, but: Productivity growth is maybe a too abstract concept and that creates confusion . For example, some claim that the reason w

I free with the point you made, but: Productivity growth is maybe a too abstract concept and that creates confusion . For example, some claim that the reason we don't see Productivity growth across the econmy is that because people(across all age groups) take the money saved from sectors with growing productivity(say, manufactured goods) and use that in sectors with stagnant productivity , say restaurants, plays ,spas , etc. As for the shift towards nursing care - yes, it is true today, but one could imagine(and some are building) all kinds of technologies that reduce that need and it's expense.For example, if there was a really affordable and good: custom meal delivery, transportation , telehealth and medical adherence , fall prevention, some arrangement that prevents loneliness, and some better medical treatments and tools to age related diseases , and many of today's drugs will be off-patent[1] - it's possible that elderly treatment cost, at today's quality levels would go down significantly. [1]Of course ,new treatments should be too available to seniors, and that raises the question of ever growing health care costs ,which is a big issue itself.