Sven Yrvindvideo
Folding Charts — Not Seven Times.
23 August 2026 · 5 min · 2K views
What this video covers
Sven Yrvind prepares paper charts for a small boat by cutting them into 32-by-32-centimeter squares.2:04 He stores these sections in plastic bags to protect them from moisture during transport by bicycle.1:27 He rejects the necessity of carrying a sextant for navigation, citing the requirement for precise timekeeping, nautical almanacs, and complex plotting tables.2:53 He maintains that the simultaneous failure of the US GPS, Russian GLONASS, European Galileo, and Chinese BeiDou satellite systems is statistically improbable.3:39 If such a global navigation failure occurred, he argues that the resulting societal collapse would present a greater challenge than his own lack of position-fixing equipment.3:47 He folds the chart segments fewer than seven times to comply with mathematical limits on paper folding, allowing him to fit the reduced sheets into small storage compartments aboard his vessel.4:35
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