Spacetime has a positive cosmological constant, so it's closer to de-Sitter than... | Hacker News

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maverick_iceman on Nov 8, 2016 | parent | context | favorite | on: Emergent Gravity and the Dark Universe

Spacetime has a positive cosmological constant, so it's closer to de-Sitter than Anti de-Sitter. It doesn't really have to do with curvature exactly, which is given by the Riemann tensor (so it doesn't make sense to say it's positive/negative).

codethief on Nov 8, 2016 [–]

But you certainly can talk about curvature scalars being positive/negative which are derived from the Riemann tensor.

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