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Sean Carroll: The Passage of Time and the Meaning of Life

Long Now

CHAPTER

The Laws of Physics - Time Is Flowing

The laws of physics tell you exactly what was going on in the entire past history of the system. Real astronomers actually do this. They extrapolate the current state of the solar system millions or billions of years into the past and the future. All the information you need about the system right now, its positions, its velocities and so forth, suffices to predict the entire future and past of thesystem. This is the disappearance of this idea that time is flowing.

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