[[The panel shows a mostly-illegible page of a book.  In the margin is a note.  Unusually for xkcd, this note is written in lower-case.]]
I have discovered a truly marvelous proof that information is infinitely compressible, but this margin is too small to...
...oh
never mind :(

{{Title text: PROTIP: You can get around the Shannon-Hartley limit by setting your font size to 0.}}