Timeline for Is the "cosmological constant tension" the prime reason that we believe the expansion of the universe is accelerating?

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Jul 28, 2019 at 17:32	comment	added	Helen		@BenCrowell true and true; I should search Wikipedia first the next time :) As about Λ vs. H I'll try to understand it better and add an edit to the question.
Jul 26, 2019 at 14:52	comment	added	user4552		I also wondered about Hossenfelder's description of this as a tension in the values of $\Lambda$ rather than $H$. It seems unlikely that she just made a silly naive mistake here, since she's a well-known professional in the field. More likely this is a situation where the data analysis doesn't disentangle the two issues.
Jul 26, 2019 at 14:43	comment	added	user4552		This answer doesn't address the main confusion on the part of the OP, which was the idea that the recent tension between experimental results was the reason for believing that cosmological expansion has accelerated (which was in fact a result from 2 decades ago).
Jul 26, 2019 at 12:14	history	answered	Richard	CC BY-SA 4.0