Not limited to TWederation so I'm posting it here, even if I imagine it is mostly for multi-user systems.
This is just a (very simple) method for presenting multiple versions of a tiddler, such as a piece of documentation:
In the context of TWederation, anyone can modify an existing tiddler (in their own wiki) and once fetched by others it would show as a tab among the other tabs. The tabs could be sorted according to e.g modified date or number of likes etc.
I have purposefully kept the demo without frills to just show the very basic concept.
Imagine what this can do for documentation. There can be a discussion thread at the bottom of the tiddler commenting on the text and whenever there's enough input in the comment, it can be added into a new version (by anyone) that then shows up. (I.e it shows up if you accept posts from that author. ) Anyone fetching can choose to, for example, only fetch the versions and not he discussions. Or even only fetch the "top version".
Basically, it would be a mesh between google discussion threads and wikipedia. But with 'da power of Tiddlee.
<:-)