Eugene Fama — American Economist born on February 14, 1939,

Eugene Francis "Gene" Fama is an American economist and Nobel laureate in Economics, known for his work on portfolio theory, asset pricing and stock market behaviour, both theoretical and empirical... (wikipedia)

Economies typically do not function well in hyperinflation. The real value of government debt might disappear, but the economy is likely to disappear with it.
Debates go on to this day about what caused the Great Depression. Economics is not very good at explaining swings in economic activity.
After costs, only the top 3% of managers produce a return that indicates they have sufficient skill to just cover their costs, which means that going forward, and despite extraordinary past returns, even the top performers are expected to be only as good as a low-cost passive index fund. The other 97% can be expected to do worse.
In an efficient market, at any point in time, the actual price of a security will be a good estimate of its intrinsic value.
State constitutions typically provide that the state first has to service its debt, then make it pension payments, and then pay for services. What we don't know is whether that order will be enforced. And ultimately, the busted state is going to be looking to the federal government for a bailout. Think Greece, but on a much bigger scale.