In a very long post, a new poster just referenced this topic that was the subject of a long heated debate in
https://goscf.com/t/46376Coincidentally?, there is a long article on the subject in the September 2018 APS journal pages 840-847. I can only guess the author of the article is the same that authored the original thread (as I am not going to slog all the way thru the original thread to see if their name was in there).
Perhaps I should have posted this in the APS folder where Scott E. would be more likely to see it, but I am wondering if the APS vetted the accuracy pf the contents of the article, given that the person who posted here did not appear to be an impartial observer?
I do know there is someone in the Midwest feeding the market with lots of the Leaders material, but I have no idea if it is archive material (including print to order "errors") or whether forgeries, as I avoid Leaders material like the plague (equally distasteful to me in either case).
*** Moved by Staff to a more appropriate forum. ***