I don't know and it is a good question. Maybe we need three or four wage earners per household. Maybe 60-70 hour work weeks. I would like to hear some ideas that does not include more grinding down workers for GDP. Maybe another measure for a health society. Growth certainly help lots of people but when an economy is mature maybe more is not necessarily better, at least for the average worker.
The main thing is that the share of GDP per worker has gone down, meaning the distribution is skewed. But I agree that there isn't a good option that I've heard to change this without other negative side effects.
