Polynesian voyagers crossed thousands of miles of open ocean without compass, sextant, or chart — navigating by reading star paths, swell patterns reflected off distant islands, bird flight angles at dusk, and the colour of the sea. They held the navigation as a living model in the mind, updated by the system itself.
The principle: When the map is missing or wrong, the system itself is still emitting signals. The traveller who can read the swell, the wind, the colour of the water, has a richer guidance than the one who relies on a map made by someone else. Maps fail when conditions change. Reading the system never goes out of date.