Re: C-n is very slow in Font-Lock mode

[Richard Stallman]

      1995-03-09  Richard Stallman  <address@hidden>

              * simple.el (line-move-ignore-invisible): New variable.
              (line-move): If that var is set, use vertical-motion.
              Skip any extra invis chars beyond where vertical-motion stops.

    So it seems like you ought to know the reason ;-)

I wish I remembered.