Ahh...ok....like C-14 dating....oh, wait, that really doesn’t work well for plant life and is really not very accurate after a few thousand years though, right? (I could be wrong on that....that “technique” may have been proven to 100% correct in all testings...I haven’t looked into it in a while.)
I could be wrong though. I’m not one of those smart people who has spent my life in the educational system being shown how to think “correctly.”
C-14 dating works for everything “once living” (including plants),
but you’re right about the limitations. It’s only good to about 10,000 years at most.
Of course, there’s still the problem of assumptions like the amount of C14 in the atmosphere at the time it was alive, among others.
They didn’t use C-14 but since you can’t be bothered to stay up to date why should the rest of us take you seriously?