At some point the banks will recognize that you won't ever pay all of the loan back, and then they have to write off a large portion of that debt. If that real

At some point the banks will recognize that you won't ever pay all of the loan back, and then they have to write off a large portion of that debt. If that realization happens too quickly for too many student loans, then there might be a sudden crash. Doesn't look like it yet though.