This essay, chapter 22 of Psychic Exploration, describes the application of concepts of modern physics to the study of psychic functioning. Included are a discussion of an example of a theoretical model of precognition that is testable and is compatible with contemporary physics, and descriptions of recent experiments using instruments that have exceptional sensitivity. The full volume of Psychic Exploration can be purchased as an ebook or paperback version from all major online retailers and at cosimobooks.com.