You're taking a stat that the author doesn't understand, failing to understand it yourself, and reposting it.
You're well out of your depth here.
There's nothing to complicated to understand about the stat. It's a simple IFR calculation. Even Sheriff Joe can do it. The question is whether its true and how they derived it....don't have time right now to look at it but some friends are checking. Not rock science....not even calculus oh high and mighty math master.