David Raymond Layzer (December 31, 1925 – August 16, 2019) was an American astrophysicist, cosmologist, and the Donald H. Menzel Professor Emeritus of Astronomy at Harvard University.
[2][3][4] He is known for his cosmological theory of the expansion of the universe, which postulates that its order and information are increasing despite the second law of thermodynamics.
[6][7] When he proposed this theory in 1966, he suggested it would solve Olbers' paradox, which holds that the night sky on Earth should be much brighter than it actually is.
[9] He also published several articles critiquing hereditarian views on human intelligence, such as those of Richard Herrnstein and Arthur Jensen.
[14] • "Cosmogenesis - The Growth of Order in the Universe", Oxford University Press, New York, 1990, ISBN 978-0-1950-6909-0 • "Why We are Free", Anthony Aguirre and Bob Doyle, Editors, Cambridge, MA, USA, 2021, ISBN 978-0-9835-8025-6