Palmistry is the belief that the future can predicted through the reading of ones’ palm. Predictions are based on the shape, line, and mounts of the hands. This is another pseudoscience which has withstood the “test of time” so it must have some basis in reality. Unfortunately it does not. This practice relies mostly on cold readings, which are a set of techniques that manipulate the subject into behaving a certain way or thinking the cold reader has some mysterious ability. These palm readers prey on the average person who is inclined to make sense out of the very generalized statements being made. They also bank on high probability chances because they know that for every dozen claims you mentally reject you’re more likely to remember the one that you accepted as being particularly insightful about yourself.
While this practice might not be scientific in any way it can still be an entertaining activity! Feel free to watch this video of Derren Brown demonstrating the Forer-effect and how the volunteers completely buy into his readings.