I’ve never been big on Halloween, personally, but even in advance of having a little kid I made peace with it. I’d go for the simplest costume I could imagine. For many years this meant wearing a colorful Superman t-shirt underneath a half-buttoned regular overshirt, which combined with my short dark brown hair and my eyeglasses made me scrawny Clark Kent. This year I’m going for a costume that’s even simpler still: a mere safety pin transforms me into Theodore Twombly, the character played by Joaquin Phoenix in the excellent 2013 Spike Jonze film, *Her*. With his cellphone suspended in breast pocket, Twombly can go for walks with his beloved, a highly advanced AI voiced throughout the film by the disembodied Scarlett Johansson. She in turn views the world through Twombly’s phone’s camera. And, no, I didn’t grow a mustache for the occasion.An ongoing series cross-posted from instagram.com/dsqt.