Evidence simply means that which is evident which is not the same as proof. It is evident that people sometimes give their testimony about various things from alien abductions to the depression relieving power of Zoloft (finally an actual A to Z!).
The only question is how much weight we give to different kinds of evidence and why - multiple witnesses, independent accounts, witness credibility, collaborating facts, altered behaviors, etc.
The only question is how much weight we give to different kinds of evidence and why - multiple witnesses, independent accounts, witness credibility, collaborating facts, altered behaviors, etc.