Paul Ehrlich's thesis of the Population Bomb was read by me during the 1970 first Earth Day where the book became available. I believed at that moment that the calculation was correct. I immediately changed my thinking and feeling about life on the planet Earth as all interconnected to the descriptions of human evolution by Dr. Lewis Leakey and the fossils. This resulted in my hypothesis in 1997 called "On the Origin of Human Extinction." I enrolled at Stanford University in September 1972 and continued to inquire and put together the information on massive extinctions and the evolution of humans. My thesis is that only 25% of the human population are males that have the characteristics of TJ males according to the work since the late 1800s of Elizabeth Briggs Myers of four out of the 16 temperament types: ESTJ, ISTJ, ENTJ and INTJ. This 25% account for almost 95% of the military, politicians, lawyers, judges, police and men in positions of power in every industry on earth. INDIVIDUAL POWER and not community where women and children are working and living. This human population distribution is the cause of HUMAN EXTINCTION. Population growth is merely as symptom. I found the cause of the events caused according to the University of Pennsylvania professor, John Hughlings Jackson. The "cause of things caused" is what I discovered by checking their behavior throughout history and also these origins in the austrolopithecus explained in Raymond A. Dart's book, Adventures With The Missing Link, published 1959. In a key chapter he titled it The Anatomy of Murder. The TJ males throughout evolution are a subset of humans that still dominate the power for their own short term benefits and glory that feeds their being. The continuous wars and violence are the key to understanding all human "history". Margaret Mead also catalogued in her books on cultures and specifically in one of her works called on Sex and Temperament. Paul Ehrlich's book was the first forceful title stating the situation in the most realistic terms. My work on has been lifelong on understanding the sixth mass extinction