I Cosmic Test Reveals Odd Findings for Einstein's Relativity

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Recent tests of Einstein's relativity on a cosmic scale have yielded unexpected results, suggesting that general relativity (GR) may not be the favored model when certain assumptions are applied. The paper discussing these findings, while over a year old and with 15 citations, indicates that the results are not statistically significant enough to challenge the prevailing understanding of gravity. The discussion highlights the importance of the assumptions made in the analysis, which may affect the credibility of the conclusions drawn. Overall, while the findings are intriguing, they do not represent a major breakthrough in cosmology. The implications for the broader scientific community and future research remain uncertain.
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What the popular press writes and a scientific paper says may be somewhat different.
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The paper is more than a year old and has 15 citations, not zero, and not a zillion. That tells you that it is more or less typical among such papers.
 
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Vanadium 50 said:
The paper is more than a year old and has 15 citations

I first read "the paper is more than 15 years old".
Need more coffee...
 
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malawi_glenn said:
I first read "the paper is more than 15 years old".
In some frame, it is.
 
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I think the gist of it is, if you assume a certain class of theories (which include "vanilla" GR) contains the correct theory of gravity, and assume some prior on those theories, and then do a Bayesian estimate of the best fit parameters to predict our current measures of some key cosmological numbers, then GR is not the favoured model. But it's not a resoundingly significant (in the statistical sense) result, and I've no idea how plausible cosmologists in general find their assumptions.
 
In Birkhoff’s theorem, doesn’t assuming we can use r (defined as circumference divided by ## 2 \pi ## for any given sphere) as a coordinate across the spacetime implicitly assume that the spheres must always be getting bigger in some specific direction? Is there a version of the proof that doesn’t have this limitation? I’m thinking about if we made a similar move on 2-dimensional manifolds that ought to exhibit infinite order rotational symmetry. A cylinder would clearly fit, but if we...