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Tue Nov 03 2026 at 06:00 pm to 07:00 pm UTC-05:00

Free Hybrid Lecture: Time’s Second Arrow

  • Geological Lecture Hall, 24 Oxford Street, Cambridge, MA 02138 · Cambridge
Harvard Museums of Science & Culture Publisher / Host Harvard Museums of Science & Culture
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Free Hybrid Lecture: Time\u2019s Second Arrow
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Stars, planets, minerals, and living organisms can become increasingly diverse and complex over vast spans of time. Yet no existing law of nature fully describes or predicts how these complex systems evolve.
In this talk, Robert M. Hazen, Earth and Planets Laboratory, Carnegie Institution for Science, will introduce a proposed new natural law that applies to nonliving, living, and symbolic systems. The law suggests that evolution is not limited to biology but occurs throughout the universe. It is based on the idea that systems made up of many interacting parts can gradually develop new ways of functioning.
Hazen describes this process as a possible “second arrow of time,” working alongside the familiar tendency toward greater disorder described by thermodynamics. Join us to learn how researchers are testing this idea by studying the evolution of minerals, soil microbes, tumors, languages, and AI.
Advance registration is recommended; free event parking is available with registration by November 2:
https://tinyurl.com/HazenLecture
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Geological Lecture Hall, 24 Oxford Street, Cambridge, MA 02138, United States

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