Riding the subway back into town today after a morning of looking at sites with an old course mate, I became aware of a loud woman a few seats away who would not sit still. Skinny, early middle age, simple clothes. At first I thought she was talking on her cell phone, but then I realised that she was talking to nobody in particular, keeping up a continuous monologue. What little I could make out was about DJs and clubs and 1990s pop stars. She was wearing a scruffy blonde wig, staring into space, her wide brown eyes quite beautiful in her lean face. At one point I thought she was trying to get my attention because she was leaning into the aisle and facing me, but when I made a little salute and said hello she paid no attention to me, just continued talking, looking quizzical, staring through me. And the constant movement – turning left, turning right, standing up, waving her arms, switching seats, doffing the wig, sitting down, donning the wig – and talking, talking. The people closest to her were fiercely ignoring her, just ducking a little when she flailed her arms. I believe she must have been tweaking on amphetamine. And I believe most Stockholm people my age will know who she was – a certain 1990s pop star. I wasn’t sure until I got home and googled for recent pictures of her.