Why? Why should this genius, the youngest Briton to win three Michelin stars, the mad-eyed, swoonworthy (yes, sorry) maverick sell out so spectacularly? Why should he follow in the footsteps of his former protege and famous rival, Big Sweary Gordon, to endure the televisual equivalent of sloppy seconds? The whole circus must have eaten away at his soul like a vast, metaphysical tapeworm.