> The problem w this model is that it only works if assets are relatively uncorrelated (it was true in the past but ignored systematic risk and adverse selection in originations). What this has to do w musk or spacex I’m still not sure

What this has to do with with SpaceX is that there's the same blatant disregard for sound financial analysis by the very institutions that were/are supposed to know better. The NASDAQ 100 fast track decision is a similar level of financial malpractice as the ratings agencies slapping AAA on things that they knew were little better than junk. The abuses of the subprime mortgage originators were well known long before the actual meltdown. As were those systemic risks you spoke of. They were ignored by those whose entire job it was to not ignore them, and they sold out their credibility for a quick buck. If you can't see the similarities to the present situation then I can only wish you luck.