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I hear that the calculated value of the vacuum energy using QFT is 120 orders of magnitude more than what is observed for the cosmological constant (or vacuum energy). But I wonder if this calculation was done in a very slow locally expanding spacetime. Or was it done with a strictly non-expanding metric? Perhaps when the QFT calculation is done in a very slowly expanding spacetime metric that the calculation might come out more equal to observation. Perhaps the small value of the differential expansion factor ends up multiplying the result and lowers it by 120 orders of magnitude.

Anyone have any insight into these things? Thanks.

Anyone have any insight into these things? Thanks.

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