It isn't that the pound falls and rises. That's with the tides.

It was the specific huge fall as a reaction to the possibility that Scotland may do something disastrous after all... The markets don't like it. Politicians deliver promises subject to markets allowing.

Rather ironic considering the reputation for prudence coming from Scitland, the home of Adam Smith, that SNP are beginning to buck such a reputation and start marking ther citizens for recklessness.

Mind you, the no campaign needs a good spanking for giving the yes campaign ammunition. The yes side are starting to actually believe what Salmond is telling them!