Competitive Exclusion Principle Quotes

“Page 550:
CG Darwin—grandson of the great Charles—argued in The Next Million Years (1978), an important book, that if humankind as a whole comprised two subtypes, Homo contracipiens (contraceptive practitioners) and Homo progenitivus (non- or lower-practitioners), then the second type would inevitable come to dominate, and finally exclude, the first. Once H. progenitivus had ousted H. contracipiens, the group would increase with even greater intensity until it hit some barrier; an effective population control policy; lack of food or some other basic resource.”
― Jack Parsons, Human Population Competition: A Study of the Pursuit of Power Through Numbers