2min chapter

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245 | Solo: The Crisis in Physics

Sean Carroll's Mindscape: Science, Society, Philosophy, Culture, Arts, and Ideas

CHAPTER

The Cosmological Constant Problem

In 1998, we discovered that the universe is accelerating. And that seems to be best fit by the idea that there is a tiny amount of cosmological constant out there. If you can find your attention not to every possible situation, but to certain situations where the fields are relatively low energy and long wavelength, then you can invent an effective field theory below some ultraviolet cutoff.

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