I feel a bit about the Scottish referendum as I did about the 2005 Ashes series. In both cases, those of us in the know were gripped with a nervous tension right from the very beginning. Shane Warne, Alex Salmond: the same smirk, the girth, the same potentially lethal form. That whole summer of 2005 I was on the rack, following every convulsive twist and turn, hoping against hope that England would manage to cling on to a precarious lead until stumps were drawn on the final day of the series.