It’s the end of the world as we know it (and that’s great!)
...This is an almost entirely meaningless debate. The total fiscal overhang of our federal, state, and local governments — their combined debt and unfunded liabilities — is around $140 trillion, and growing. That is about twice the annual economic output of human civilization, and nearly the value of all the financial assets in the world. It is something close to a mathematical certainty that those debts and obligations will not be made good on at their present value.

The real debate for the next 30 years is not how we go about paying our bills, but how we go about not paying them. What is most likely is a much smaller and more modest government, something closer to what Robert Nozick called the “nightwatchman state.” The reason for that is the fact that we have good substitutes for Social Security and the Department of Education but not for the army or the courts.

This all sounds painful and disruptive, and it surely will be, though exactly how painful and how disruptive will be in part a question of luck and in part a matter of how prudently and intelligently our policymakers proceed while we get from where we are to an economically sane position....