interesting, but misleading David continues: "Every year, the claims that are made by proponents shrink as our horizons of measurement advance. A field that once purported to find treasures, cure illnesses, convey infinite energy and speak with the dead ..."
Nonsense. This confuses scientific investigation with what Madame Zodiac does for a living. Scientists and scholars who study these perplexing human experiences do not make their living by claiming to find treasure, cure illness, or "convey infinite energy," whatever that means. This is like confusing ornithologists with birds.