this post was submitted on 06 Mar 2025
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It's not as dumb as you make it out. The issue isn't that GPS is really, really good at what it does; it's that it's also incredibly vulnerable to disruption and spoofing. And due to the particulars of how GPS works, we can't entirely fix that. We can do some things to ameliorate it, but a lot of those aren't suitable for smaller things that use GPS today.
The other thing is that GPS largely replaced a tremendous number of other navigation aides and techniques, including other radio-navigation systems like LORAN-C.
It's also just a generally bad idea to be too dependent on a single system. If GPS reception fails for one reason or another, it would be good idea to have a backup.
You're saying this in the world where SMS is considered good for 2FA, and PSTN identifier is considered as good as your citizen's ID, and people's lives depend on systems incorporating NodeJS and Kubernetes. Yeah, by the way, Docker everywhere, and all the POSIX standardization and source-compatibility to allow different systems adhering to standards ... have lost to Linux just becoming another main target.
But yes! It's a bad idea. Also it's typical now for these systems to start lying in warzones where their owners don't want one of the sides to have satellite navigation. They then give shift maps or whatever to the side they want to win.