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As long as GPS stays bullet proof, Navies are in good shape.

It's going to be a hard come-to-Beevis moment if the magic signal goes away and people have to remember celestial navigation.

Not sure you can even find a sextant on most vessels.

So too these AI services.

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GPS service is obviously going to go down whenever World War III goes hot, so the Navy is definitely training sailors on the alternatives.

The Navy was phasing out celestial navigation, but after some public outrage from retired naval officers they brought it back.

Does this mean using the star-tracking devices like what satellites have, or like a human paper/pen thing?

It should mean both. They need to learn how to do it by hand and then learn how to lean on a navigation system. If only GPS fails, then the celestial navigation program fallback runs without a hitch. If shit hits the fan, then they can break out the manual and remember how to do it by hand.

I mean, it is taught. In school. And, maybe, there is some residual skill out there in the fleet.

Doing a fix, like playing music well at all, takes copious practice.

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