I agree with that assessment because you can see it all around you, day-in and day-out. People, when they save (which isn’t much, now) expect to get the time-value of their money back in the future or principle plus interest (the time preference value of money). This brings to mind something I will never forget — the differences between saving, investing, speculating and gambling, which are all on as spectrum of the same kind of behavior, vis-a-vis expected returns.