Re: Baseline skillset
You know, if I had to provide an answer as to why this stuff is of interest - it'd be that (to borrow Dan's phrase - which nails it IMO), "It makes you a better you."
Of course, there can be all sorts of examination and pseudo-scitheophilologicontific analyses of what the word "better" means, but for my purposes and goals for training - it really fits.
Now, as for answering the question as to exactly "where" it fits . . . I don't know, yet . . . still working on that one.