One concrete data point for the thread. 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.

One thing that is still open after Dr.EM_Chicago’s answer:

How long did you give it before you decided it was working?

Moderator note: leaving this open. It is being argued well and the disagreement is the useful part. No action needed from anybody.

wendy_avl said:

For anyone reading later: the numbers in this thread are worth checking against a primary source before you act on them, including mine.

True, with the qualification that this is a self-selected group. The people for whom it did not work post less, and that shapes everything we think we know.

wendy_avl said:

For anyone reading later: the numbers in this thread are worth checking against a primary source before you act on them, including mine.

Thank you — that is the clearest version of this I have read, and I have read a lot of them.