That is the measure of a successful speech and it will get them thinking in No 10. It is as if the PM went off for a spot of skinny dipping and returned to the beach to find Mr Miliband wearing his Vilebrequins. In short it was the best conference speech by a Labour leader since Tony Blair's barnstorming valedictory in 2006 and the most politically significant since Blair's backs-against-the-wall effort in the midst of the Iraq quagmire and Brown's serial disloyalty in 2004. David Miliband left the conference this morning to avoid 'overshadowing' his brother. A year ago when Ed Miliband's leadership was on the line this was a sensible move. Now it looks arrogant in its irrelevance. If the embittered elder brother did watch the speech, he will have been weeping over the CV he is presumably now writing. Ed Miliband has not won the general election. His ideas are often banal, his policies, where they exist, are often ill thought out. But he will be listened to more closely now. The British public may not yet believe that a Labour Party still in hock to the unions and in denial about its economic mismanagement can build One Nation. "Why, I say, that to tax the community for the advantage of a class is not protection; it is plunder, and I entirely disclaim it." Ed is responsible for the Climate Change Act, which, it's estimated, will cost upwards of A200 billion over next few decades. That cost will