photo needed In cosmological thermodynamics, David Layzer (c.1925-) is an American astrophysicist note for his 1975 Scientific American article “The Arrow of Time”, in which he discusses entropy changes in an expanding universe (in the context of the arrow of time), and for his 1990 book Cosmogenesis, in which he attempts to explain how the expansion of the universe allows ordered, or correlated, relational regimes to arise and persist, notwithstanding the second law, in terms of the rate of expansion outrunning the rate of equilibration involved at local scales. [1]

Layzer completed his BS in physics (1947) and PhD in astrophysics (1950) at Harvard University and retired as a Harvard astrophysics professor in 1998. [2]

1. (a) Layzer, David. (1975). “The Arrow of Time”, Scientific American, 233:56-69.
(b) Layzer, David. (1990). Cosmogenesis: the Growth of Order in the Universe (section: “Biological Order”, pgs. 28-32). Oxford University Press.
2. Peterson, Susan. (1998). “Seven Distinguished FAS Faculty Members Retire”, Harvard University Gazette, Jul 03.
3. Doyle, Bob. (2011). Free Will: the Scandal in Philosophy (pg. 11). I-Phi Press.
Layzer entropy model (1975)
A summary of Layzer's 1975 entropy gap model of the universe, according to a 2011 summary by American physicist Robert Doyle. [3]

Further reading
● Layzer, David. (1970). “Cosmic Evolution and Thermodynamic Irreversibility”, Pure and Applied Chemistry, 22:457-68.
● Layzer, David. (1977). “Information in Cosmology, Physics and Biology”, Int. J. Quantum Chem. 12(suppl. 1): 185-95.
● Layzer, David. (1978). “A Macroscopic Approach to Population Genetics”, Journal of Theoretical Biology,73:769-88.
● Layzer, David. (1980). “Genetic Variation and Progressive Evolution”, Amer. Natur. 115:809-26.
● Layzer, David. (1982). “Quantum Mechanics, Thermodynamics, and the Strong Cosmological Principle”, in: Physics as Natural Philosophy, ed. A. Shimony and H. Feshbach, 240-62. MIT Press.
● Layzer, David. (1985). Constructing the Universe. American Scientific.
● Layzer, David. (1988). “Growth of Order in the Universe”, in: Entropy, Information, and Evolution: New Perspectives on Physical and Biological Evolution, ed. B.H. Weber, D.J. Depew, and J.D. Smith, 23-40. MIT Press.
● Layzer, David. (1991). Cosmogenesis: the Growth of Order in the Universe. Oxford University Press.

External links
David Layzer -
Layzer, David – WorldCat Identities.

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