……….is 1600ft long and an exhilarating ride, especially in the rain. Apart from a frisson of probabilistic, almost Gaussian uncertainty, the adrenalin rush was sufficiently modulated to permit enjoyment of the scenery. Especially upside down. There’s even time to think. I found myself musing on retrospective distortion – an examining of past events without adjusting for the forward passage of time, leading to the illusion of posterior predictability. Fings ain’t what they used to be because we not only remember imperfectly but do so in the context of a personal and limited historical worldview. I went to a dance festival recently – not a bestseller for me – and it was rather like attending as a participant, a children’s tea party. Big fun when you’re six.