Ponzi? Doesn't seem to fit this particular case.
FTX had a $500 million investment in Anthropic, when it was worth $4.6 billion. Google may invest, bringing valuation up to $30 billion so FTX stake could be 6x more at $3 billion.
Anthropic worth $30 billion
Prosecutors don't want Anthropic investment to be allowed
Also according to the book, multiple FTX insiders were shocked that there was such a shortfall, as they knew that the FTX exchange was very profitable due to the cryptos' large trading spreads. Alameda blunder trading activity and SBF's reckless spending were main culprits for the shortfall. There was a viable business among all the recklessness.
It would be quite ironic if there is a SURPLUS of funds after all is said and done.