ABCD

Margin

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