Atomic Clocks

"There is a particular fact about the most precise atomic clocks currently in operation that the wider cultural register has, on the available evidence, not yet adequately absorbed."https://spacedaily.com/d-the-most-accurate-atomic-clocks-in-operation-now-lose-less-than-one-second-every-30-billion-years-and-the-reason-this-matters-isnt-precision-for-its-own-sake-its-that-gravity-itself-slo/