Shifting balance theory Shifting balance theory The shifting balance theory is a theory of evolution proposed in 1932 by Sewall Wright, suggesting that adaptive evolution may proceed most quickly when a population divides into subpopulations with restricted gene flow. The name of the theory is borrowed from Wright's metaphor of fitness landscapes (evolutionary landscapes), attempting to explain how a population may move across an adaptive valley to a higher adaptive peak. According to the theory, this movement occurs in three steps: Although shifting balance theory has been influential in evolutionary biology, inspiring the theories of quantum evolution and punctuated equilibrium, little empirical evidence
Evolutionary Humanism necessary. Mr. Herrmann’s earlier website on this subject, www.evolutionaryhumanism.org, was transferred and is no longer associated with his school of thought. Evolutionary Humanism The book "New Bottles for New Wine" by Julian Huxley, 1957, contains a collection of his essays beginning with "Transhumanism" and ending with "Evolutionary Humanism". In the latter essay, Huxley called for a new religion compatible with science. 'Evolutionary Humanism' is the English language name of a book by Dr Michael Schmidt-Salomon which suggests that evolutionary theory has implications for morality. Schmidt argues that the theory of evolution does not prescribe a particular set of moral values