Why? It seems to me that there are two reasons.
First, the idea of imagining your own nation has an empowering effect, whether it is practical or not. It allows people to imagine solutions to intractable problems which appear to have been ruled out by an exhausted elite at Westminster.
In Westminster, nothing appears to be possible. Issues tend to be framed in terms of gestures within existing institutions, or in terms of budgets, which might have little or nothing to do with the basic problem. The independence debate appears to have allowed politicians to sidestep their besetting sin: the worship of existing institutions, and a blindness to their manifest failures.
It is bound to be energising when you find yourself in a political culture that is prepared - rightly or wrongly - to think boldly. It is worth remembering this in the future if, as seems increasingly fraught, we are ever going to persuade Scotland to stay in the union.
Second, it seems pretty clear that the swing to the SNP is primarily an anti-Labour swing. It means that people have suddenly grown up, have looked around themselves and feel a sense of rage that they have been trapped, abused and taken for granted all these years by the old style arrogance of the Labour Party.
In this respect, again, the swing to the SNP must appear like a liberation. And look at the housing around Glasgow and you realise the appallingly inhuman mess that Labour rule has made of Scotland since the Second World War.
When I saw some of the estates in Glasgow for the first time, they took my breath away. In fact you could see that Labour-style mass houisng, inhuman and technocratic and degrading, as a vision of everything that has gone wrong with politics in the UK over the same period.
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