Five levels

Level one. Adjust the inputs and the load. Sleep, food, movement, clean air, stable housing, reduced chronic stress, reduced toxic exposure, people. The corridor’s width depends on these. When it narrows, the cheapest move is to widen the inputs.

A patient with high blood pressure whose sleep is unavailable, whose food is processed, whose hours are sedentary, whose life is isolated and stressed — that patient has not failed at level one. Level one was never attempted.

Level two. Let the body’s own correction work. Immune response. Regeneration. Feedback loops. A bruise heals. A cut closes. Many failures resolve once level one is in place. The body is itself a correction hierarchy at a finer resolution.

Level three. Surgery, medication, structural intervention. The body cannot recover without help. Antibiotics for what the immune system cannot clear. A blocked artery opened. A failing thyroid supplemented. What mechanism does well. Expensive — side-effects, recovery, the intervention itself. Endorsed where one and two cannot widen the corridor and the alternative is closure.

Level four. Permanent accommodation. The corridor cannot be restored to its prior width. The body lives in the narrower one with continuing support. A prosthesis. An implant. A regimen. An adapted environment. Diabetes, kidney disease, disability, chronic mental illness, age-related sensory loss. Not failure. Not romanticised. Not catastrophised. The corridor lived at a different width.

Level five. Exit. Not the structure’s removal from Chapter Two. The body’s own closing, which the structure attends. No combination of the four can widen the corridor. Care for the closing — pain, dignity, presence, the operator’s authority over the conditions. Chapter Nine.

Ordered by intrusiveness, by cost, by resolution. Each level is justified only where the levels below are insufficient or too slow. The order is the default, not a sequence to be walked in an emergency: where the corridor is closing fast, the level that holds it comes first — a stroke is treated at level three the hour it happens, and maintenance follows. Minimum intervention for maximum restabilisation, with the operator’s authority over the body intact at every level above the fifth.

This is the short edition of Ø Applications — a summary. Where a step is compressed here, the original carries it in full. The original book (PDF) · This edition (PDF)

The same page on the420code.org: the420code.org/models/applications/05-medicine-and-the-viability-corridor/