I figure somehow they are related. And that when that huge level of debt (even larger now) can't be sustained, things will go through a huge shift. So, going back to those pre-debt days of 650 (or perhaps it was closer to 900?) doesn't seem that far fetched.
I would like to say that our economy has grown a LOT in the last 30-40 years. But, how much has it REALLY grown in the sense of producing things, getting something of tangible worth back?
Of course with inflation, we just might see a Dow 800,000 as well sooner than we would like!?