However, I just noticed an interesting paradox here.  Since Chibi-Usa said
that she had an older brother, will Usagi use some contraception?  And if she
does, will Chibi-Usa have a big brother?  

     Well, being a little bit of a studier on this matter (i.e., I watched
T2 and read quite a few Discover and Scientific American articles on the
issue), I will offer a few solutions to this paradox.
     First, we have the T2 style answer. Usagi will forget about protection
on the correct night (which might have already occured, though it is implied
this will be her first time to have sex). Thereby, she will have a son in
1997.
     Secondly, we have the old-style theories which set past as a single
chain. This will, assuming Usagi takes proper protection, either cause
Usagi's protection to fail (even birth control pills coupled with a 
spermicide and condom can fail--those being the most effective combination
at preventing pregnencies), or, we will end up destroying the universe in
a temporal paradox. I prefer the former, thankyouverymuch.
     Thirdly, we have the revised "no-paradox" theory. This will have
Chibi-Usa return to tell Usagi she will give birth to a son. However, this
knowledge, once acted upon, will *NOT* cause the knowledge to be lost,
spawning instead another temporal reality.
     Now, take your pick. :)
--
Ben Kosse bmk7411@cs.rit.edu
BGC Otaku and worshipper of the Red-Eyed Goddess. Member of ShAS.
Anime, RPG's, computers, poetry (read/write), music (listen/compose).
Author of the Bubblegum Crisis theme pack (see the homepage below).
Homepage with anime and other interests. (http://www.rit.edu/~bmk7411)