I logged straight on to my new Amazon account and used my law-firm salary to order everything Wasson, Hofmann, or Ruck had ever written. I then spent the next twelve years researching this book, as a thirty-year-old hypothesis became a forty-year-old hypothesis to which no one paid any attention. To this day I have never personally experimented with psychedelics, in the conscious effort to let the objective evidence guide the investigation that has consumed my adult life.