The question, "What Constitutes Evidence?" is a vital piece in the development of Critical Thinking skills.
True, what is evidence for a criminal trial is not the same as what an anthropologist, a biologist or a chemist might need in their respective fields, but the basic components of what is and what is not is an important subject for consideration.
As JWs, we were persuaded to accept simple assertions when accompanied by a word such as "evidently" as acceptable evidence or proof of a matter. Just imagine how different it would be if all JWs knew the difference between an unfounded assertion and real evidence?
That would be the end of faith in the "Faithful & Discreet Slave" aka the Governing Body!
This could be powerful stuff.
Learn to think like a scientist!!!