Banks and collateral

Good quoted question from Jesse:

I also want to mention that “collateral” is what makes the financial world turn. Everything runs on “credit,” if you have “collateral” then you can obtain credit. The problem now, that is being exposed, is that no one knows anymore if collateral is real or even “who’s” collateral it is anymore since it has been lent out so many times. Now, to add even more fuel to the fire, it turns out that some of the so called “collateral” is not and was not even real to begin with! Funds in the trillions of dollars have been lent and now it seems as if the collateral backing many loans may not be real. …And Europe is now considering pulling the plug on shadow banking? How many “assets” will banks and brokers have to sell to keep their capital ratios adequate?