Answering the narrow version, because the broad one does not have a single answer. The honest answer is that the effect is real, the magnitude is contested, and the individual variation is larger than either. Those three things can all be true at once, and most arguments here are two people holding different parts of that.
I have used three payment routes and the only thing that changed with each was how much leverage I had when something went wrong.
What I actually want to know is how people are thinking about the trade-off between reversibility and privacy, because you cannot have both.
I would rather have one careful answer than five confident ones.
MikeFit_NJ said:The honest answer is that the effect is real, the magnitude is contested, and the individual variation is larger than either.
That holds where the measurement is reliable. Where it is noisy — and a lot of what gets tracked here is noisy — the same reasoning produces confident nonsense.
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Shop Reference StandardsDr.PainCLE said:I have used three payment routes and the only thing that changed with each was how much leverage I had when something went wrong.
Adding a me-too, because a thread of one person's experience is not much use.
Adding the clinical framing, because it changes how the question reads. 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.