# Episode 05: Test the model

Bell inequality: what it proves and what it does not

## Narration script

A Bell test combines several correlations, not just matching results in one basis. The CHSH expression has a classical bound of two under its assumptions. Our ideal mathematical model reaches two times the square root of two. Reducing visibility reduces the value. This browser computes exact expectations; there are no experimental counts or instrument calibrations. A real Bell experiment requires physical measurements and careful treatment of assumptions and loopholes. A simulation above two is not proof that our computer produced entanglement.

## Exact footage

Capture step 5 at visibility 100,70,0 percent. Show all four analyzer settings, S, and the classical bound. Display the IBM reference page title without copying its article.

## Recording steps

1. Use a clean browser profile and 1920×1080 capture; enable a visible cursor.
2. Record the introduction, then the listed demo in one deliberate pass.
3. Pause on each prediction before showing the output; record narration separately if needed.
4. Review captions, mathematical symbols and scientific claims against the sources.
5. Check for private data; export a local draft. Publishing requires a separate decision.

## Acceptance

Reference settings reproduce expected S; limitations are spoken and shown.

Status: prepared script and generated SVG thumbnail; footage not recorded, video not published.