Some argue that Britain would be shut out of the single market, or forced into limbo for years. Quite why that should be so when Tunisia has tariff-free access to the EU is rarely explained. I notice that nobody raises the identical point about Scotland, which would be in the much same position at first since it has to leave the EU before reapplying as a new state. But of course, everybody knows that the EU would in fact arrange matters so as to ensure that Scotland never missed a beat. Clever lawyers in the Commission's legal services would find a way, as they always do.