10 January 2023 - a first time

There's a first time for everything? If you knew first-order logic, you'd say everything that happens. If you knew special relativity, you'd say everything that happens given a known inertial reference frame. If you knew general relativity, you'd say nothing, because some events are intrinsically unobservable and first times cannot always be detected. And if you knew quantum mechanics, it would get complicated. Didn't I tell you? Only physicists are allowed to draw conclusions.