sophie_paris said:The honest answer is that the effect is real, the magnitude is contested, and the individual variation is larger than either.
Mine went the same way, slower. Nothing to add that would improve it.
sophie_paris said:The honest answer is that the effect is real, the magnitude is contested, and the individual variation is larger than either.
Adding the part of the answer the thread has not reached. It helps to ask what evidence would change your mind before you look at any. If nothing would, the discussion is not about evidence, and it is better to say so early than to spend nine posts discovering it.
The figures, for anyone assembling their own picture. For anyone reading later: the numbers in this thread are worth checking against a primary source before you act on them, including mine. Half the figures circulating in this community trace back to a secondary summary that dropped a qualifier.
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Shop Reference StandardsOne thing that is still open after sophie_paris’s answer:
How long did you give it before you decided it was working?
Closing the loop on my own question.
Closing this out. What actually changed my mind was the point about waiting for a trend instead of reading a single measurement, which is embarrassing in hindsight and worth saying anyway.