Is the statement "Claims demand evidence" always true?

[bennyboy]

That's an interesting position on what science does.  How would studying physics give you a deep mistrust of reality?

I caught that, too, but after the edit time window was over. I meant studying physics gave me a deep mistrust in my ability to perceive or comprehend reality.

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No doubt.  If something further about light, or what's under light, comes up, then that new info defines a new context.

What's under anything, everything...remember, light isn't a qm snowflake. 

It depends what comes up, I suppose. If something comes up that underlies QM, then that would certainly define a new context for photons and probably everything else, as well, at least on that primitive level. Whether it would change whether we'd call my claim that there's a dragon around the corner "true," or the OP proposition, seems unlikely.