Solo: Vacuum Energy and the Cosmological Constant | Mindscape 358
June 22, 2026
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2:02:02Now PlayingSolo: Vacuum Energy and the Cosmological Constant | Mindscape 358
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The most surprising discovery in fundamental physics during my career as a scientist was undoubtedly the acceleration of the universe, announced in 1998. The most straightforward explanation for these observations is a positive cosmological constant, or vacuum energy. I talk about the origin of the idea with Einstein, how quantum physicists started to think about it and understand the "cosmological constant problem," as well as how its discovery also raised the "coincidence problem." This is the first of two connected solo episodes; the next will be on theories of dark energy that are not the cosmological constant.
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