Some weeks ago a London university performed an experiment in telepathy involving a large number of subjects. The experiment attracted the media, of course. To the best of my understanding, the whole thing was a sham. Still, something interesting came out of it. The experiment focused on the notion that telepathic messages sent by many people simultaneously were more likely to be picked up by isolated people receiving them. The group sending the messages sat in a big room and concentrated on randomly selected images, while the subjects receiving them were in a different building and were completely cut off from the world. All their senses were incapacitated, leading to something approximating total sensory deprivation. One of the subjects, a young woman, told the television interviewer that she had seen something like herring bones while the image transmitted to her contained a couple of raccoons. “Close enough?” she chuckled. Unbeknownst to the people running the telepathy experiment, herringbone patterns are among the standard entoptic forms, which would regularly come up in conditions of sensory deprivation. If the experiment was reversed, and there were many isolated subjects receiving telepathic messages, at least a few of them would report seeing abstract paintings—say, Mondrians.