One concrete data point for the thread. Keep the original post as written when you update it, and add the correction underneath. An edited-away mistake is invisible to the next person who makes it.
One thing that is still open after paige_pharma’s answer:
How would you tell the difference between that and the alternative explanation?
stefan_berlin said:Keep the original post as written when you update it, and add the correction underneath.
Pushing back on stefan_berlin here. Not convinced. The evidence being cited is consistent with the conclusion and also consistent with two other conclusions nobody has ruled out.
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Browse GL Biochemstefan_berlin said:Keep the original post as written when you update it, and add the correction underneath.
That is right, and it stops being right at the edges. The general case is well behaved; the interesting cases in this thread are all at the boundary where the general case breaks.
Reporting back.
Update: the thing I was blaming turned out not to be the cause. Leaving the original post as written rather than editing it, so the mistake stays visible for whoever searches this next.