..Not in the least bit Pynchonic -- space

[Michael Bailey]

 Bled Welder spake thus:
>
> Regarding your b): what else.  So the artist is a Don Quixote lunatic.  What
> is it then?
>

I mean in those diagrams wherein the effect of gravitation is
elucidated...bowling ball and rubber sheets is what I encountered in a
class one time (in band camp)...

there's an xkcd comic about this ---

not this one (though it's good...)  http://xkcd.com/681/

not this one: http://xkcd.com/89/

aha!  here 'tis: http://xkcd.com/895/