Cross-Domain Learning: How Bits and Ops Transfer Between Domains: The Mechanical Process of Learning New Domains Using What You Already Know

Information does two things. It moves, and it gets acted on. When information moves — from a book to your eyes, from a server to your laptop, from one person's mouth to another person's ears — the unit is the bit. One binary distinction. Shannon formalized this in 1948: how to measure information in transit, how to encode it efficiently, how to transmit it reliably through a noisy channel. The bit is the same whether it travels over fiber optic cable or is carried by a pigeon. What varies is the speed and reliability of the channel, not the nature of the bit. When information gets acted on — when you read the book and understand it, when the server processes a request, when the listener parses the sentence and decides what to do — the unit is the op. One irreducible transformation by one processor. The op is the same whether the processor is a CPU executing an instruction, a surgeon making an incision, or a person reading a sentence. What varies is how long each op takes and how many are needed, not the nature of the op. Together, bits and ops cover everything information does. Shannon formalized movement. A companion framework HOWL-INFO-14-2026 formalizes action. This paper uses both to explain how people learn new domains and how what you already know accelerates what you learn next.