How did complex systems emerge from chaos? Physicist Sean Carroll explains. How did life on Earth originate? Scientists still aren’t sure, and this remains one of the world’s most fascinating and mind-boggling mysteries. One way of approaching the question is to think generally about how complex systems emerge from chaos. Since the 1800s, scientists have known that entropy is always increasing, with everything in our Universe trending toward disorder over time. A more nuanced understanding of entropy is helping today's scientists make progress on the question of the origin of life, as Sean Carroll explains in this Big Think video

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chapters:

0:00 Entropy: The 2nd law of thermodynamics

1:56 The two axes: Chaos & complexity

2:40 How did life emerge?

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About Sean Carroll: Dr. Sean Carroll is Homewood Professor of Natural Philosophy — in effect, a joint appointment between physics and philosophy — at Johns Hopkins University in Baltimore, and fractal faculty at the Santa Fe Institute. Most of his career has been spent doing research on cosmology, field theory, and gravitation, looking at topics such as dark matter and dark energy, modified gravity, topological defects, extra dimensions, and violations of fundamental symmetries. These days, his focus has shifted to more foundational questions, both in quantum mechanics (origin of probability, emergence of space and time) and statistical mechanics (entropy and the arrow of time, emergence and causation, dynamics of complexity), bringing a more philosophical dimension to his work.

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