Re: Default of jit-lock-stealth-time

[Richard Stallman]

    >     Regardless of the system load: the load may be low at the moment
    >     _exactly_ because the user terminated all processes that would disturb
    >     the interactivity of his current work, and I think it a mistake that
    >     Emacs considers the CPU fit for grabbing for its own purposes unless
    >     the user _explicitly_ asked for it.
    >
    > Stealth fontification is intended to stop whenever the user types a
    > character.  So why would it interfere with the "interactivity" of
    > Emacs commands?

    Who is talking about the interactivity of Emacs?

The first paragraph cited seems to suggest that.