For me it’s all about debt and derivatives, dont know what MMT says about total debt levels however doesn’t really matter what theory you base your relatively small amount of money printing on if you allow $1,500Trilion in derivatives. gotta tip your cap at how they’ve kept it all together so far really, but it only ends one of two ways. Financial system instability and more band aid stimulus, or letting the markets work and flush out the bad bets/betters. Don’t think they can keep the house if cards / debt stable enough for long enough without ruining the world long term. Realise derivatives market size is a guesstimate but even investopedia.com says its $1 quadrillion!