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>>15578
only issues i can think of are below.
1. positioning without giving yourself away.
you need an alternative to US owned GPS satellite systems.
possible alternative is to use machine learning to make something that can navigate with just a compass, the sun, the moon, positions of the stars, reliable calendar/clock apps, and various tables for star positions and other shit i don't know about.
above might not work in fog, but then again there are probably cameras that can see through it with IR, UV, microwave radiation, or something else.
2. power source.
need a shitload of high capacity batteries, or solar panels. but then you need to stay above water for a while during the day, which is very risky.
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