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World's first GPS-free quantum navigation trial succeeds at sea
(interestingengineering.com)
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this post was submitted on 29 Aug 2026
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Using the same reference points on earth that GPS uses, that doesn't mean using GPS.
That doesn't work too well out in the ocean and lots of other places too. If you can't use your gravity map, you're gonna use GPS for precise position data.
Coordinate systems existed before GPS.
Not with GPS accuracy