I don't really know anything about this stuff, but recalled a quote from a reasonably trustworthy article I read recently that seems to support your position: h

I don't really know anything about this stuff, but recalled a quote from a reasonably trustworthy article I read recently that seems to support your position: https://www.economist.com/science-and-technology/2021/06/12/quantum-weirdness-helps-design-better-accelerometers https://www.economist.com/science-and-technology/2021/06/12/... > even the best military-grade inertial-navigation systems, which employ lasers, but not atomic interference, drift by kilometres a day. Though with this new fancy quantum stuff, INS-only might get more viable.