User blog comment:PsiCubed2/For Newbies (and Veterans too): The Great Scale of Googology/@comment-24920136-20171219165253/@comment-24920136-20171221022201

It's a collection of arbitrariness and guesswork, an unpleasant read, and the distances between the examples show inconsistency in the scales being handled. (ie: the distance from n to n+1 should roughly relate to the distance between m to m+1, even if just on some hyper-m=f(n)-logarithmic fashion). Also, you can't just plop "PTO of x " into fgh, unless ofc you link to or include some marvelous way to construct an FS. also you miss out on alot of uncomputables between BB(n) and Rayo(n) such that a mere 50 levels in between don't do them justice. (i'm talking about things like oracle BB's, FISH numbers etc..)