There is much for Americans to fret about in the United Kingdom’s vote to leave the European Union, and not just that financial markets initially collapsed and extreme volatility will be the norm for the foreseeable future. I, for one, happily retired, am prepared to apply for a job at Wawa if the “Brexit” vote brings a long-term slide in world markets. The financial collapse could be that serious.

We truly will not know for many months. It will take that long for things to shake out because the “smart money” never…