Re: Should invisible imply intangible?

[Richard Stallman]

    > Is there any practical use for text which is invisible but not
    > intangible?

    Yes.  Check out lisp/reveal.el (aka reveal-mode) 

Ok, I am convinced.  But what do you think of the view that invisible
should imply intangible unless something like reveal.el is used?
We could have a flag which says whether invisible implies intangible.
It could default to t, and reveal-mode could set it to nil.