Are we really so sure that reducing working hours can't, itself, lead to improved economic health? Such as by increasing distribution of income flows, and increasing time available for economic consumption?

One of the greatest tricks of the modern era in the US has been to convince everyone that making the slice of pie bigger for the richest people is necessary to grow the economy.

> and increasing time available for economic consumption?

Where is that additional money going to come from? I think you’re missing some important factors in your analysis.