The problem with you (and most mainstream clowns they call "Economists" now a days") is that you all focus on the when of the predictions, without concerning yourself as to the why.
We all know there will be another downturn at some point. Even grasshoppers like you agree. The debate should not be about the when. It should be about the why. When it finally does occur, people (aforementioned economists and folks like yourself) will all be pretending they understood that, all along, they saw the signs as to why this would happen. In reality, however, it'll be the folks like Santelli who - had they been listened to - could have helped prevent the next crash entirely.
Crashes aren't a normal cycle of business. They happen because something fails - OR because the laws of nature reassert themselves.
Instead of trying to avoid that and correct the system, folks like yourself just go "haha...hasn't happened yet!"
As if supporting the whole rotten structure is some sort of victory.