GR Verified out to 500 million Light Years

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  • #2
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This was an awesome announcement. It further restricts some possible quantum gravity theories by providing yet another yardstick to surpass.
 
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  • #3
Grinkle
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Very cool.

Something I couldn't quite figure out -

"... the result was just what GR predicts with 9 per cent precision."

I would expect to see a word like error or accuracy used in this context, not precision. One can take a very precise measurement that has a huge error in it. Was using precision a deliberate phrasing to distinguish the claim from a claim of accuracy, or was it intended to mean accuracy? Or perhaps the error in the measurement is very small, and in fact it is the precision of the measurement that really is the limiting factor?
 

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