I do not think this would work on organisms that did not live and die in our atmosphere because the ratio of C12 and C14 is local to our atmosphere and might be very different where they come from.
that apparently wouldn't work on extra-terrestrial stuff as it seems to depend on "the ratio of 14C to 12C in the atmosphere" and works for "up to about 58,000 to 62,000 years"[1]
You're not getting it. You can't date anything non-biological using carbon dating. It's not that you get the wrong answer. You get no answer, since you don't know a-priori what the ratio of C12 to C14 was when the sample was formed. The equations are under-constrained.
You can still use radiological dating with other elements (e.g. Uranium).
Difficult to get what was not said in the comment I'm replying to. So fine, I don't know my dating techniques. Uranium radiological dating sounds fine. Why not that?
>> if it turned out to come from the future
> I don't even…
have a sense of humor? It is certainly possible if we had a extra-terrestrial organic matter (which we don't) that it could test as coming from the future based on carbon ratios, though obviously it would not actually be from the future - thus "on that scale".
I'm not sure if the same applies to Uranium radiological dating.
