Re: Systematizing back navigation

[Juri Linkov]

> Thus instead of implementing and installing a prototype of this at a
> venture, I want to ask everyone else's advice, and also for ideas as
> regards when and whether this Back mechanism should act as described in
> the last paragraph.

I'm afraid it's a quite hopeless endeavor to find such a common denominator
that would satisfy even a small fraction of users since endless number of
navigation spaces might be active at the same time.  Much more than even
possible for next-error navigation where we struggled to find a way
to switch between available navigation spaces.  For example, for the
Back button my preference is to navigate in the file system: in a file buffer
typing the Back button goes to the Dired buffer with point on that file name
when the file was visited from Dired, then the next Back button goes up
to the parent directory, etc. like in a typical File Manager.