"$57 trillion in world debt is something quite unlike a savings glut"
That's also $57 trillion in savings. You do realize that someone owns the $57 trillion in debt, right? From the point of view of the owners, that is $57 trillion in savings. If you think debt is all bad, then you are not thinking coherently.
I can't upvote this enough. The balance sheet has two sides. The world is not in debt to aliens. Some of the debt is 'savings' in the ordinary sense: if people accumulate a portfolio of government bonds for their pension for example. But a lot of it is the accumulated wealth of the very wealthy.
That's also $57 trillion in savings. You do realize that someone owns the $57 trillion in debt, right? From the point of view of the owners, that is $57 trillion in savings. If you think debt is all bad, then you are not thinking coherently.