20,000 posts - 19,715 posts = 285 posts.

285 posts x every 30 seconds = in roughly 2 1/2 hours I will make the 20,000 post. It will take some work and lots of gibberish but usually I work hard to make posts that turn out to be nothing but gibberish so I think I can do it.

-OR-

ACL can tell us the new rumor and I bet you we can hit 3,000 pages and 20,000 posts by morning.