“Vaping on the Surfliner to Santa Barbara. So Won Kar Wai,” I tweet. Everything is about film with me. I’m specifically referring to the glamorous robots and their lovers vaporously posing aboard zooming, futuristic trains in Won Kar Wai’s 2046. Maybe three people I know who could possibly read that tweet will get it. A minute later I get a response from a producer friend asking what the Surfliner is. She’s a dedicated driver, a Roman motorist, who would never take the train to either Santa Barbara or San Diego, the Surfliner’s route via Los Angeles, where it picked me up. Pity: it’s one of the most pleasant travel experiences I’ve ever known.