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A comment on The World Economy Runs on GPS. It Needs a Backup Plan. Parent comment

Re:The World Economy Runs on GPS. It Needs a Backup Plan by hcarvalhoalves on Wednesday July 25, 2018 @09:32PM (#17614447)
> hony signals and fool the receiver on, say, an aircraft into thinking it’s somewhere

I thought aviation didn’t rely on GPS for navigation?

https://en.m.wikipedia.org/wiki/Inertial_navigation_system

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Re:The World Economy Runs on GPS. It Needs a Backup Plan by CMCDragonkai on Thursday July 26, 2018 @12:25AM (#17615044)
They still need GPS for periodic correction.
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