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by ekimekim 3225 days ago
I believe the OP meant that they're narrowing in on being confident that gravitational waves travel at C, not narrowing in on a more precise value of C.

That said, if we do obtain a more precise value of C, the definition that changes is the meter. The second is defined in terms of energy states of a caesium atom.

1 comments

Right you are. I wrote that a bit ambiguously.