The links are already organized in the Perfect Memento in Strict Sense article, which is linked to by all of the subordinate articles. What does this navbox accomplish that that article doesn't? The only thing I can think of is that it could save the one click it would take to return to the main article, which I don't think is worth cluttering all of the pages; and if it were collapsed by default to reduce that clutter (which seems typical for large navboxes like this), then it wouldn't even save that one click, which would be better used for simply returning to where one was in the main article and continuing from there.
Maybe navboxes would be good if the articles weren't already organized in a list or category (although I'd prefer either of those options), but that isn't the case for this or the other three navboxes. --TheSinnerChrono 08:52, December 12, 2009 (UTC)