While I'm not sure every number is in pi (see my other comment to grandparent), there is a similar really weird feeling I get when I consider all digital data is really just numbers. That means there is a number, that when turned into a .avi (or format of your choice), shows anything you can imagine. Imagine yourself talking with Plato. There is a number that produces a 1080p video of you doing just that. Actually, there are a lot of numbers that do that, as every little difference in the setting would be a different number.
There is a number that produces a high def photo of when you married your high school sweetheart, even if you never actually married her. There is one of you being awarded the Nobel prize. If there is a proof that P = NP, or that it doesn't, or even a proof that it can't be proven either way, then there is a number that would be the PDF version of that document.
Oh no! I sketched up a script to gzip the chunks, hashsum them, and then find out how many collisions there are before the real occurrence starting from an approximate address in the PI digits chain, so that I could have: ($address*1e12)$hash$collisioncount
The resulting string is 10% of size of the gzipped string, at the expense of CPU. But when I read you achieved 100% compression I just deleted the script and got out to get a beer. :-(((
You really have to admire that creativity