Precognition (from the Latin prae- 'before', and cognitio 'acquiring knowledge') is the purported psychic phenomenon of seeing, or otherwise becoming directly aware of, events in the future. There is no accepted scientific evidence that precognition is a real effect, and it is widely considered to be pseudoscience. Precognition violates the principle of causality, that an effect cannot occur before its cause.Precognition has been widely believed in throughout history. Despite the lack of scientific evidence, many people believe it to be real; it is still widely reported and remains a topic of research and discussion within the parapsychology community. Precognitive phenomena Precognition is sometimes treated as an example of the wider phenomenon of prescience or foreknowledge, to understand by any means what is likely to happen in the future. It is distinct from premonition, which is a vaguer feeling of some impending disaster. Related activities such as...