As she bent a metal spoon with her mind, computer scientist Maureen Caudill knew she was witnessing a total violation of the laws of physics--and that her understanding of reality would never be the same. Letting go of the ultra-rational, skeptical perspective she had maintained over a twenty-year scientific career, Caudill joined the 50% of Americans who report having had psychic experiences (National Science Foundation, 2000) and began a firsthand...