sean_dublin said:The mechanism and the magnitude are separate questions.
Second this. Nothing to add that would improve it.
sean_dublin said:The mechanism and the magnitude are separate questions.
Second this. Nothing to add that would improve it.
sean_dublin said:The mechanism and the magnitude are separate questions.
Coming at sean_dublin’s question from a different direction. The useful move here is to separate what is established from what is widely repeated. Those two sets overlap less than the confident tone of most write-ups suggests, and the second set is where nearly all the disagreement on this board comes from.
The figures, for anyone assembling their own picture. 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.
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Shop Reference StandardsA narrower follow-up, since the general answer is now clear:
Was that from a primary source or from a summary of one?
OP back with an update, since a thread like this is useless without one.
For the archive: it took about six weeks rather than the two I expected, and the difference between those two numbers was the whole of my problem.