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World's first GPS-free quantum navigation trial succeeds at sea
(interestingengineering.com)
This is a most excellent place for technology news and articles.
The trouble with Quantum Navigation is you might end up where you were trying to go, but at a random point in the past where you have to change history to put right something that once went wrong.
As long as you keep it below 88 miles per hour you'll be fine.
Great, now I know my velocity but I don't know where I am.
You might end up exactly where you want to be, and not want to be at the same time.
And you'll never be able to return home too.
Seems like a bit of a leap, tbh.