The problem is essentially that of communications to an army in action. After a rapid advance communications become disorganized, and there is a temporary halting until they are again in working order. ↗
Indeed, in general, healthy investment returns cannot be sustained in a weak economy, and of course it is difficult to save for retirement or other goals without the income from a job. ↗
A lot of girls annoy me who go to university - one girl told me she was going to Oxford because it was something to do between leaving school and getting married. And I've got to pay for that being an income tax payer. ↗