Telco workloads and 5g require precise time using technologies like ptp. The cheaper, more commodity those solutions get the better.
If one has such an accurate clock they might be able to accurately plot their position on earth to within 1 ft merely by checking the timed pulses of orbiting satellites.
Hey look we got a GPU to learn the Kalman filter algo.
Many are actually better than 10 ns basically a 1 foot CEP is 1 ns. If they are fixed and always on the accuracy it can build over a day is incredible.