I haven't read the book, but... Aren't the digits of pi randomly distributed? So then, you can encode literally any message you want by picking an offset into

I haven't read the book, but... Aren't the digits of pi randomly distributed? So then, you can encode literally any message you want by picking an offset into them. Could even design a "compression" algorithm where a message is designated by its offset, though I'm guessing it won't be very efficient in practice.