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Ask Me Anything | April 2023
Sean Carroll's Mindscape: Science, Society, Philosophy, Culture, Arts, and Ideas
The Cosmic Microwave Background and Isopropies
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The cosmic microwave background and isopropies, the small fluctuations in temperature from place to place are related to fluctuations in density in both dark matter and ordinary matter. Dark matter just collapses toward the regions where the gravity is stronger. A difference between the odd and even numbered peaks of the CMB is incredibly strong evidence for dark matter.
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