> It’s not unlike those cafeterias which sell customers little plastic tokens that can later be exchanged for food after queuing. Except in this case, the token

> It’s not unlike those cafeterias which sell customers little plastic tokens that can later be exchanged for food after queuing. Except in this case, the token is invisible, the queue never ends, and the “food” is a JPEG stuck to a wall—which abruptly disappears after about a week.