By profession I'm an investigator, and after 40 years working first for the Federal Government and then in private practice, I've become somewhat of a practical authority on the mechanisms of trust and deception. It helped that I'd managed (with the GI bill) to squeak out a B.A. at UC Berkeley in 1949, majoring in Philosophy, Psychology and English. And I'd long wanted to do some serious writing on the these subjects, but hadn't quite hit upon the hypothesis that blended these apparently opposing concepts into one. In the meantime, I wrote a few private essays on this and that, and a slew of notes on the related subject of biological evolution - which at the time I was somewhat of an amateur about. And still am, except over the last few years I've taught myself what I think is now worth writing about in concert with the subject of the evolution of trust.