Replacement Theory, AKA Evolution , History, Life, Sex, Climate Change, biosphere change. Conservatives fear change and difference. Overpopulation and stress moulds conservative type brains. Complex Systems are dynamic change. Stillness is an illusion. Nothing can stay the same for long. We try to force systems and other people to suit ourselves for our culture of here and now. Speciation is our destiny. Extinction will be our failure to undergo evolution, as we rapidly destroy the whole earth ecosystems for which we evolved, which will stop feeding us.