Let me give you a favor from the author
Without treaty revision and a new settlement for Scotland, by 2017 Cameron could be facing an EU in-out referendum with a higher chance of a Brexit. If that happens and it becomes the final straw for Scotland, the last Prime Minister of the United Kingdom could then be forced to watch as a little England drifts away from the continent into very uncertain seas. Meanwhile a smaller and weaker EU would be still pondering about its future. A federal UK in a European Union with a federal Eurozone at its core would be a better outcome for everybody.
Of course, there are some who favor a ‘Little England’ strategy.