[mytailorisrich]

4-day work week with same salary means that 20% productivity increase is required just to compensate, which is quite big.

At the moment we need growth fuelled by productivity gains at constant hours, or even increased hours, not a reduction of working hours, which goes in the opposite direction and, again feels like Europe is giving up.

Keynes did not "predicted" that based on continued increased productivity, not because of any rights to it.

Unfortunately productivity gains have largely stalled for years: growth is very weak while population keeps increasing.