There is a right bang of 2007 off this election. There’s a whiff of 1977 about it, too. The economy is booming. Parties are competing to out-promise each other using populist soundbites and off-kilter twitter videos. A decade-old change to pension policy is being re-written in the middle of the campaign. Semi-dodgy numbers are flying around the place. There is much gnashing of teeth, pointing of fingers and calling of names. Everyone is accusing everyone else of ‘project fear’, which is the new version of ‘fiscal space’, I guess. There’s very little discussion of how big the surplus generated by…