Comment by arjie

Without a doubt, I cannot imagine the world would have been made better if my mother was not an eye surgeon even if it meant my father, a different kind of surgeon, made half of what he would otherwise. Besides the obvious fulfillment of self my mother had, there is the reality that many eyes were operated on that would not otherwise have been. That is a story repeated across almost every profession (not all, certainly women make worse bouncers).

Twice the labour force is just far too much of a power amplifier. Many things that would otherwise lie undone simply get done. Not 2x perhaps because housework etc needs to be done one way or the other but I suspect some large fraction of growth is just better labor participation and labor allocation.