"None of us can raise an infinite bank loan, so this isn't really true. There are many, many, many limits to leverage." Yes, of course that is true, but there

"None of us can raise an infinite bank loan, so this isn't really true. There are many, many, many limits to leverage." Yes, of course that is true, but there appears to be no general limit on notional value of derivatives of debt - and when there are limits, they are local to some very particular asset class. I encourage you to re-watch "The Big Short", or at least the scene where one of the protagonists discovers the 10x or 20x notional value of total housing credit derivatives (and derivatives of derivatives ...). Although that particular asset class is no longer encumbered in that way, I predict that there is some asset class hiding somewhere that has been levered up in creative ways, just waiting to collapse ...