Every idea has to survive the channel
Every idea has to survive the trip from here to there, and the trip is noisy. Between the sender and the receiver sits a channel that adds static, drops pieces, and sometimes rewrites them.
This corner of Numbers follows information across those noisy channels — encoding, redundancy, error correction — and watches what makes a message arrive intact when the medium is trying to corrupt it.
Reference entries are on the way. Until then, remember that reliable communication is mostly clever repetition.