RE: Improvisation = fast Composition ?

[Jim Palmer <jimp@pobox.com>]

...
> Writers in the act of their craft, whether in intuitive or 
> cognitive moments, take much more of an ontological approach. 
>  If they compose a segment that works within the greater 
> aesthetic, they keep it.  If not, they drop it.
> 
...

but if you are writing a comedy sketch or improvising one, you
are engaging very similar faculties.  in one case you have more
time and the use of paper memory.

looping devices allow for some editing during improv.
so i guess they can take the place of paper memory?