The conditions to get the 2008 collapse are all there only bigger : reckless doing, 0% interest rate, government manipulation of markets, heavy regulation; except this time they will probably inflate the USD to make everyone whole so the stock market may not nominally go down
Lose lending was encouraged by the FED and the government with Fannie Mae and Freddie Mac
We have exactly the same situation now with very low interests rates that create the bubble, except now it is bigger, the same that were in denied are still in denied because they are participating to the foolish bubble