Krugman insists that Republicans are unique in refusing to admit to making mistakes, lying about their intentions, etc. Of course, these are characteristics of the entire regime, but Krugman, who is deeply tied to that regime, can never admit this. Bob and Tom, however, are subject to no such constraints.
Krugman insists that "the stock market is not the economy," and that downturns in the stock market need not portend bad economic times. But he takes the opportunity of stock market volatility to evaluate the present condition of the economy and its prospects for growth.
Krugman thinks Bitcoin serves no good purpose, except perhaps for people who are up to no good, and is powered by libertarian fantasies and paranoia. Bob and Tom have some fun banter on this one.