Well i feel the problem is you not accepting ‘longevity’ has evidence. That is fine, evidence is subjective. What one might consider enough as an evidence may not be sufficient for the other. I would rather consider something that stands the test of time and does not change, as evidence. What use is a theory that keeps getting re formalized in event of new evidences. some people might call that absurd and illogical too.I think we can agree to disagree :)