Field note · 28 September 2026

A green build cannot find the real walker.

MAX is a reminder that software qualification ends where physical use begins. The Pi, walker and person using FIND still have to meet in the real world.

MAX · software and physical proof

A complete simulation is still a simulation.

Where the proof stops

MAX has a serious software foundation: pairing, a gateway, offline behaviour and remote FIND and STOP flows. Those capabilities matter. They do not put a Raspberry Pi next to the actual walker or show that a person can use its controls in their environment.

The physical path still needs the actual device, microphone, speaker, lights, network conditions and a real human interaction. A simulation, browser run or mocked response cannot replace that observation.

Name the missing observation. Do not borrow confidence from software tests.Physical qualification boundary

What remains unproven

The supplied factory report leaves real-walker FIND and the wider physical hardware path open. The public status keeps that limit visible instead of translating strong software maturity into a claim about a physical product.

Record boundary

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