Red Warning Lights
Bubbles form on the floors of vast tanks filled with liquid, and on the thick black plastic cables that run from somewhere far above the tanks into them, and in the wrinkles of the brains floating perfectly still in the middle of the tanks, with cables sprouting out of them like they were potatoes. Some of the brains are tiny, some are large. Each brain has a little monitor displaying what it is thinking about. Some of the older brains are dreaming about reading stories about brains trapped in vats. These have been marked with red warning lights above them.