Elusive Quarry

Ever since the Society for Psychical Research was founded over a hundred years ago, parapsychologists have been attempting to prove the existence of paranormal phenomena - things like clairvoyance, telepathy, precognition, and remote viewing. This research into what is now often called "psi" has become increasingly technical. "Controlled" laboratory experiments have replaced "systematic surveys of spontaneous occurrences"; complicated statistical analyses have replaced anecdotal data. In sh...