The 'secondary effects' are bigger houses than ever, more toys than ever, more entertainment than ever, safer, more fuel efficient cars, more vacation (it's not

The 'secondary effects' are bigger houses than ever, more toys than ever, more entertainment than ever, safer, more fuel efficient cars, more vacation (it's not much in the US though), more vacation travel etc.. "Educational YouTube channels should lead to more educated and therefore more productive people." Possibly, but also less demand for a big source of labour productivity, which is education. And of course there is home life: if a Mother (or Father) stays home to mind the kids, all of the effort they do doesn't count towards labour input, GDP etc. but if they were paying someone for it, it would.