Panpsychism -- the composite of pan, which means "all," and psyche, the Latinized form of the Greek psuche, or "soul" -- is the thesis that consciousness is a fundamental and ubiquitous feature of the universe. Although sometimes met with an incredulous stare, panpsychism is a metaphysical position which enjoys a long, venerable history that hearkens back to at least the Presocratic philosophers, but which eventually fell into relative obscurity with the rise of logical positivism in the 19th century. However, panpsychism is now once again gaining prominence in the contemporary philosophy of mind in response to the perceived logical and metaphysical insufficiencies of materialism, referred to as "physicalism" in contemporary ...