Re: Showing end of buffer

[Richard Stallman]

    The up and down arrows indicate whether portions of the buffer exist
    outside the window in either direction.  Combined with the top and
    bottom markers, this makes a good visual alternative (and one that
    is, for me, much easier to view at a glance) to the Top/Bot/All
    indicators in the status bar.

It seems to me that one or the other is sufficient.  Either the top
and bottom indicators, or the up and down arrows, would be enough.