MCalavera wrote:
It depends on the definition you're holding for the word "evidence".
Witnesses may be considered evidence, albeit extremely weak.
Eye witness testimony is generally unreliable.
The best evidence is material evidence. A sing artifact that is provably not of any human origin would go a long way to carry the hypothesis that extraterrestrials have been mucking about on our turf. So far, not a single such artifact (properly vetted and examined of course) has been produced by anyone. It is alway hearsay the is bruited about, never anything substantial.
ruveyn