In Barcelona I have a car waiting to take me to Sitges, a half-hour drive down the Catalan coast. I’m two days ahead of my cousin Tim, who arranged for the car, or who arranged for the person who arranged for the car, and who was still in Hamburg for a screening of his documentary, Room 237. The film is an investigation into the multiple, cryptic, and somewhat ludicrous meanings that a number of obsessives claim Stanley Kubrick planted in his adaptation of Stephen King’s The Shining, a novel that has no similar allegations — that is, that it’s about something…