as a layman, wouldn't you need a more-accurate clock to measure the accuracy of ... | Hacker News

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		renlo 7 months ago \| parent \| context \| favorite \| on: NIST ion clock sets new record for most accurate c... as a layman, wouldn't you need a more-accurate clock to measure the accuracy of a clock? How is clock accuracy measured when the clock is the most accurate clock?

hoseja 7 months ago [–]

Well for example you can take several of the clocks and compare them.

CoastalCoder 7 months ago | [–]

Would that require the assumption that any inaccuracies affecting multiple clocks are uncorrelated with each other?

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