Another possible source of evidence for the soul is parapsychology, the study of such unusual
phenomena as extrasensory perception (mind reading, remote viewing, or precognition) and
telekinesis (mind over matter). Such phenomena would be very difficult to explain from the
perspective of mind-brain identity, because they seem to violate basic principles of physics. For
example, telekinesis would require that brains somehow have the ability to influence external objects
through means other than the forces currently recognized by physics. Precognition would require some
way in which events in the future could cause changes in present brains. If parapsychological
phenomena are real, they would indeed provide empirical support for the hypothesis that there is
more to mind than brain.