On 2014-08-11, at 3:07 PM, Amir E. Aharoni wrote:
Precisely. Function is by definition more meaningful that "left" and "right".
It seems to me like the right rail as I've seen it so far contains *metadata*, as contrasted with the older (left-hand in LTR) "sidebar", which seems more focused on *navigation*. "Metadata rail" isn't perfect, but it seems close enough based on what I understand it to contain so far: languages, interproject links, infoboxes, subject navboxes … stuff that's mostly not article content directly, but much closer to article content than the boilerplate navigation we'd expect in the sidebar.