Anticipation prepares the audience for action. Discovered through theatrical observation, Disney animators found that without a preparatory movement, actions appeared to happen "out of nowhere"—confusing rather than exciting. The principle: before any significant action, there must be a counter-movement.

Newton's Third Law, Visualized: Physical actions require preparation. A pitcher winds up before throwing. A cat crouches before pouncing. Anticipation makes this mechanical necessity visible and dramatic.

Attention Direction: Anticipation tells viewers where to look and what to expect. It transforms surprise into suspense—a more engaging emotional state.

Duration signals magnitude: Brief anticipation (2-4 frames) for small actions. Extended anticipation (12-24 frames) for major moments. A full second of wind-up tells viewers something significant is coming.

Inverse proportion: The bigger the anticipation, the faster the following action can be while remaining readable.

Staging depends on anticipation: The preparatory pose directs attention to where action will occur.

Timing is defined by anticipation ratio: Classic formula is 1:2—one beat of anticipation for two beats of action.

Squash/stretch often appears here: Characters compress before explosive movement.

Exaggeration amplifies anticipation: Cartoon wind-ups exceed physical possibility for comedic effect.

For comedic or surprising effect, violate anticipation expectations. Long wind-up followed by tiny action. No wind-up before massive action. The principle's power is proven by how jarring its absence feels.

Every action above 200ms duration should have anticipation. Scale anticipation duration to 30-50% of the main action. When actions feel "empty," anticipation is usually missing.