Nothing on this page is a video file. The diagram is the actual explainer engine running in your browser — the same Remotion composition our films render from, playing its shot list live. The ink presenter is the character engine, a live WebGL rig on a transparent canvas layered over the diagram at film coordinates. Your scroll is the clock: scroll down and you scrub through the explanation sentence by sentence, at your own pace, forward or backward — or press play for the timed version with narration.