Space Chair

"Come and look, there's a barber's chair the middle of town with big lamp above it," says Amanda.
"We've only had one drink. What the devil were you drinking?" says me.
Turns out she's not having some kind of episode, there really is, and next to it kind of computer control room in a plastic bubble. Turns out they're going to be sitting someone in the chair and projecting a visualisation of their brainwaves onto the front of the art gallery. Obviously. If they'd said that in the first place I would have known exactly what was going on.