'Watson. As you know, at the root of the art of detection is observation.'
'Of course, Holmes.'
'So why did I not observe it? Did I not follow the Brexit referendum campaign as closely as any man?'
'You did, Holmes.'
'So why did I not see the Level Playing Field, which we are now being told is the reason we cannot reach agreement with the European Union?'
'Perhaps because it was never there? Perhaps because "We need to leave the EU so we can hand out shedloads of hard-earned taxpayers' cash to 'businesses' run by mates of Dominic Cummings" might not have been an effective slogan?'
'And particularly not on the side of a bus! Capital, Watson!'
'But Holmes do you think the Conservatives had to conceal the fact that they wanted to use your money and mine, and the admirable Mrs Hudson's, to prop up unviable businesses because they have always said that lame ducks must go to the wall, that you can't buck the market. Indeed, wasn't Johnson saying the other day that the private sector always knows better than the state?'
'Though Cummings thinks he knows better than everyone. Watson, you excel yourself. But there is another hypothesis, or indeed several.' The great detective paused to take a deep draught from his pipe. 'Suppose Johnson knew nothing of any of this during the referendum campaign? Suppose Cummings concealed it from him? Or suppose Cummings himself did not know about it, and that the idea came to him only after he watched 'Dragon's Den', saw the dragons, and thought:"I'd like to do that." Or suppose Cummings could see there was a danger of the EU and the UK reaching a sensible agreement, and decided that must be stopped at all costs, and that the Level Playing Field was just a useful pretext?'
'So what's the answer, Holmes?'
'That, Watson, is the mystery, but I wager the solution will bring no man any good.'