Re: <filename> changed on disk; really edit the buffer?

[Richard Stallman]

    If I work on a tex-Document with some includes and some graphics, a
    directory can get pretty crowded, thus I don't want to have further
    files which are pretty useless to me.  The only useful situation I can
    imagine for having a separate file for auto-saving is if the System,
    Machine or Application crashes while emacs does autosaving.

Actually that's the principal purpose of autosaving.