They solve the problem of getting money past Venezuela's currency controls at the border, assuming you can find somebody in the country who will accept it. That's not a small if, but it does represent an alternative that would not exist without cryptocurrencies.
But I'm talking more about when central banks fail to react to crises, sometimes only acting months or years after action could be taken to prevent some of the worst aspects of these crashes. Plus the current pervasive distortion of markets due to quantitative easing (and now, the inverse) is seriously fucking with how we value companies. The P/E ratio of most large tech companies is absolutely crazeballs bonkers and we have monetary policy, in part, to thank for that.
As for inflation, the U.S. Federal Reserve can't seem to figure out why inflation is as low as it is with unemployment this low. They just don't know!
