Indeed. That's one of the reasons why the "Before Present" time scale (that uses 1/1/1950 as the epoch) is sometimes called "Before Physics" (another one being that 1950 is less and less "present", of course)!
But also, finding something from within the last hundred years doesn’t say an awful lot about something claimed to have been a closed system for millions of years.
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You could just look for isotopes from the atmospheric nuclear tests that were conducted? Doesn't need to be a reactor I would assume?
Indeed. That's one of the reasons why the "Before Present" time scale (that uses 1/1/1950 as the epoch) is sometimes called "Before Physics" (another one being that 1950 is less and less "present", of course)!
I guess we can say this is when humankind reached adulthood, became able to drink and got a driver’s license. And a gun.
Yes.
But also, finding something from within the last hundred years doesn’t say an awful lot about something claimed to have been a closed system for millions of years.