Again, it’s impossible to predict what might happen in the event of a leave vote. There are serious consequences for Northern Ireland—a part of the wold I know very, very well. The peace process is based on EU membership and what happens to the peace process is difficult to predict. The border is open with a motorway over it, and that border would be the border between the UK and the EU. It would need border control and customs control, so it means shutting a motorway down, and shutting down most of the roads, as happened in the days of the Troubles. That is hugely difficult for the people who live on that island.

It’s difficult to know what the people of Scotland might think, but at the very least there needs to be—and this is regardless of the result next week, because I’ve said it before—a full reassessment of the relationship between the nations of the UK. The current constitution doesn’t work. The concept, to my mind—I’ve said it before—of parliamentary sovereignty doesn’t work. I think we need to move towards a system of shared sovereignty. It happens in Canada, and there’s no reason why it shouldn’t happen here. But there is no question, if there is a ‘leave’ vote next week, that the UK can just carry on as before. That simply isn’t possible if it wishes to remain stable.