pete_nash said:

There is a difference between no evidence and evidence of no effect, and this subject is one where the two get swapped freely in both directions.

Agreed, with the usual condition: that holds for the average and this board is a collection of individuals. A population claim and a personal prediction are different things and get quoted interchangeably.

KevinCompounds said:

Whether it is right for the case being asked about depends on a detail that has not been given.

Thank you — that is the clearest version of this I have read, and I have read a lot of them. Sending this to two other people who asked me the same thing last week.

pete_nash said:

There is a difference between no evidence and evidence of no effect, and this subject is one where the two get swapped freely in both directions.

I read this differently. The confidence in this thread is running ahead of the evidence, and I would rather the uncertainty were stated than smoothed over because it is unsatisfying.

Adding the numbers, since they settle part of this. 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.

Moderator note: a post naming a supplier has been edited. Discuss suppliers in the review sections, not here. Thread quality here is what the rules are for. Keep it up.