Is the statement "Claims demand evidence" always true?

[robvalue]

Also, this is a question about how tools/methods are used effectively. The processing of claims usefully includes considering evidence, like shooting something with a gun usefully includes aiming rather than firing randomly.

As such, the evidence is going to be based on the results of using this method, compared to not using it. And remember that for mundane claims, the source of the claim is often evidence in itself. If someone I trust tells me a fairly trivial piece of information, my experience with that person will lead me to probably believe them if I have no reason not to.