This document discusses emerging technologies and cultural practices in digital media. It outlines four principles of how digital media is different: the end of media scarcity through ubiquity, diminished cultural latency through alacrity, distintermediation through utility, and digital culture being participatory through interactivity. New technologies follow exponential growth curves like Moore's Law and Kryder's Law, while their impact follows Metcalfe's Law. Every new digital channel changes the entire media system by enabling these four principles.