Ahem.

In that ancient future land
Where the dieties have sat
Let our descendants understand
This bright and shining cyberspace
That holds some tunes of the human race
And is known as Cafe Mudcat.

I suggest a CD of the Digitrad as of 31 December 1999 and a complete backup of all threads from inception to said date, AND a computer that will read them both.

If you want to guarantee they're understood, however, print a hardcopy of all of it, because text only requires a pair of eyes and a deciphering mind to understand. English will probably change as much as it has since Beowulf (1000 a.d.) but it will be translatable.

V