We are back to that level at most things if not more.
- US GDP up something like 40%; unfortunately, that's against a national debt increase of 120% or so.
- That doesn't even include the unfunded liabilities (some ridiculous trillion dollar number).
- Housing debt similar levels
- Student debt massively higher, unsustainable bubble.
- etc
This is all on top of a worldwide national debt increase north of 60% iirc. Not to mention the quadrillions of derivatives floating around in the world which will do god knows what in a downturn.
And this has been the 2nd longest expansion in US history. We are overdue.
The big difference is we don't have the same types of tools available to fight it. Deficit is already massive, so pumping cash in the system is going to have some seriously detrimental effects. And interest rates can't go much lower (they are desperately trying to raise them now in anticipation of needing to lower them in the not so far future).