Here's a loose idea if anybody wants to implement it.

In my Firefox web browser, the back and forward buttons let me go back and forth in my browsing history and they also serve as drop-down menus for the nearest 10 pages.

In MediaWiki, the [[Special:Allpages/Ijkl]] page lets me see the article names immediately following Ijkl in alphabetic order. Unfortunately, there seems to be no easy way to get the previous page of alphabetically arranged article names, i.e. those immediately before Ijkl. When I'm looking for articles about Sweden, Swedes, Swedish, ... I often go to Special:Allpages/Swed to get an overview (by typing that URL in my browser).

What if every article page served by Mediawiki contained a previous and next arrow that let me browse the site in alphabetic order, and where the arrow buttons also served as drop-down menus for the nearest 10 entries. This could be especially useful for pages that don't yet exist, e.g. [[Ijkl]], because they would link to pages that do exist.

I realize there can be all kinds of issues with implementing such a function, including runtime performance, caching, and the exact definition of alphabetic order for various languages, but I don't want to make this any more complicated than the Special:Allpages.