In the 20th century, Dr. Fendelman speculated that a pentagram shape that appeared in the x-ray of the skull of the Fendahl Core was some form of neural relay. (TV: Image of the Fendahl) In the 51st century, when someone died, their consciousness might leave an imprint in the neural relay. Using its communications device, the data ghost could, for a short time, talk to other people before deteriorating, starting to repeat itself. While this phenomenon usually lasted only a few minutes, Anita mentioned that her grandfather had "ghosted" for an entire day and kept talking about his shoe-laces.