In the book, 1984, the true sign of loyalty to The Party is that you believe what they tell you over the evidence of your own senses.

This is exemplified when Winston is being “re-educated” in the Ministry of Love by O’Brien. In a scene reprised in Star Trek: TNG, O’Brien shines four lights at Winston but wants him to believe there are actually five.

Eventually Winston genuinely believes there are five, and so is ready to go to Room 101 to complete his love of Big Brother.

And so it is with Brexit Britain: true believers are required to genuinely believe that a clearly and obviously black piece of paper is, in fact, blue.

Only Brexit Britain can’t afford a Ministry of Love, so adherents have to brainwash themselves on the cheap.