The working A prototype: use its controls to test the build question.
Reveal the external and local systems keeping island essentials working and what happens when one fails.
RN conceived the question, structured the evidence boundaries, designed the experience, implemented the prototype and documented its limits.
This independent prototype demonstrates an approach; it is not a deployed client system, professional advice or proof of real-world outcomes.
Work through the controls with a situation of your own rather than the sample values. The tool responds to what you put in, so the useful output comes from real input, and everything is processed in your browser as you go. Any sample content you find already loaded is there to show the shape of a filled-in state, and you can clear it and start again at any point.
The build overview sets out the question, the purpose, the role and the evidence status in one place, and the public record behind it states what changed, what another person can reuse and what supports the system. If you want to judge how far this build should be trusted, the record is the page to read, not this one.
BUILD 046-A
What Does This Island Depend On?
Reveal external and local dependencies, then test how one severed system cascades.
OPERATING
No synthetic dependency is currently severed.
External port route
Entry dependency
Subsea communications cable
Entry dependency
Local energy grid
Depends on PORT
Water operations
Depends on GRID
Community clinic
Depends on GRID, CABLE
Food distribution
Depends on PORT, GRID
Boundary: The graph demonstrates cascading dependency logic using invented fixtures. It does not describe present Hawaiʻi assets, predict outages, establish resilience, or direct emergency decisions.