One thing that is still open after ZaraB_AL’s answer:
How would you tell the difference between that and the alternative explanation?
Old thread, but it comes up first when you search for this, so it is worth updating. If you are comparing against somebody else’s result, check that you are comparing the same measurement taken the same way. Most of the apparent contradictions in these threads dissolve at that step.
TirzTom said:One habit that pays for itself: post the method alongside the number.
TirzTom has the substance of this right. The condition it depends on is worth stating. Yes, and the corollary is less popular: if the reasoning holds, it also holds where it produces an answer we do not like.
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Shop Reference StandardsTirzTom said:One habit that pays for itself: post the method alongside the number.
Saving this. It is the first explanation that did not require me to already understand it.
From the other side of the consultation, briefly. It is worth asking what the claim would look like if it were false. If nothing would look different, it is not a claim about the world and no amount of discussion will settle it.