[spinchange]

"An extreme shortage of good-quality collateral was why the GFC happened"

It started with a housing boom in America and housing is not generally poor quality collateral. More money was lent than could be repaid because of the way securitization was being done. Then a bunch of "safe" synthetic derivatives we're created off that bad debt too. The real estate collateral underneath it all was probably the only good thing (and part of the justification for the whole mess in the first place)