One machine, five kinds of door, every one of them walked all the way to its own ending.

What the switch did, counted

Every persona-bearing screen carries an instrument that re-renders it for a different kind of person. A walk where that instrument can only succeed would prove nothing, so it is allowed to refuse — and both numbers are on this page rather than in a conversation.

The falsification counter

A screen that needs a different shape for a different kind of person — a control only one of them has, a section only one of them sees, a step only one of them walks — is not a fill, and the claim under this programme is weaker for each one. Three of them and the claim is not true.

Counted by cause, not by screen, and the difference matters. The one divergence surfaces on 4 screens — B9, C1, C2, C8 — but it is 2 finding, not 4. Counting the surfaces would put this walk one short of the three that would falsify the claim, on what is really a single cause: a member of the public has no record holding an address, so they cannot be invited. That is a second way in, not a second setting. The direction document predicted it and gave it its own screen. Among the four kinds that do hang off a record, nothing needed a different shape — which is the result the claim needed. The screen where that is written down.

The 9 walks that run end to end

• 1 · The strangerA1 → A2 → A3 → A4 → A5
• 2 · The firm publishesB1 → B2 → B3 → B4 → B5 → D1 → D2 → D3
• 3 · Create a portalB1 → B6 → B7 → B8 → B9 → B10 → X1 → X2 → X8 → X9
• 4 · The customer, all the wayC1 → C2 → C3 → C4 → C5 → C6 → C7 → C8
• 5 · The claim, from both sidesC7 → C8 → B12 → B11
• 6 · The unhappy pathsB9 → X3 → C7 → X4 → C8 → X5 → B5 → X6 → B1 → X7
• 7 · Messages group by portalC6 → C7 → C2-5 → B12
• 8 · The proof — one screen, two kindsB7 → B8 → B9 → C1 → C2 → C3
• 9 · The loopC2-5 → E1 → E2 → A4