On the question of the Scottish nation, Jack attributes views to me that I do not hold. He says that nations are a modern invention. Scotland has a history as a feudal dynasty. It was not a nation any more than England, Wales or Ireland. As Jack himself has pointed out, nationalists view their nation as extending backwards into the mists of time and incorporating dynastic Scotland.
Nation is a relatively modern concept and is tied to the question of citizenship and democracy.
To a certain extent nations were created by the political processes unleashed by the English, American and French revolutions. But it does not greatly matter. I am quite happy to be corrected by those who have studied this more. The point is that the Scottish nation was invented, like every other invented nation. It was therefore a real nation, or as real as any other.