Radiometric dating speed of light
This can have great implications, especially for the relative dating of fossils: F4 being younger than F1 in the drawing below.All strata put into one thick pack of layers produces a geological column which appears in many textbooks - but it is a construction and cannot be found as such.
Even if the speed of light reached the proximity of its final value decades ago, there would be enough residual decay as the value reached its limit asymptotically for our modern apparatus to detect.The speed of radio-active decay also depends on other factors like the speed of light. Wiens has a Ph D in Physics, with a minor in Geology.It is believed that radioactivity is a spontaneous, random event. The fundamental assumption made is that the decay of an atom is independent of the age of that atom.