# Read the change, then follow the signal

14 seconds. Silent excerpt; no speed changes.

A typeset excerpt from real packet-filter revisions leads to the recorded native partial RTL cone. The excerpt is not native UI and the cone is not equivalence proof.

- **00:00:00.000–00:00:05.099** See exactly what changed. Typeset source excerpt from two real revisions.
- **00:00:05.100–00:00:13.999** Then follow the signal. Recorded partial RTL cone; not equivalence proof.

Source: film-overview.mp4, 34–48 seconds. The complete film and its limitations remain available on /demo and /demo/walkthrough.