Well apparently Ozzy Osborne has wheeled out his big gun today, in the form of a weighty tome from the Treasury, that's as thick as a church doorstep, and which no doubt he expects everyone to read.
Even the BBC reporter said that it contained an equation that would give Einstein palpitations. 
Rolling coverage of all the day's political developments as they happen, including publication of the Treasury's report on the cost of leaving the EU
