Temperature sensors, though I don't know if there are wireless versions.
Just because something cannot be ethically proven in a lab, doesn't mean the idea should be shunned, it's also not nice to call people liars when they could genuinely be suffering.
This is so...
I don't even know where to start...
Saying something is unlikely to be observed directly in a lab is one thing, but, are you saying that there are no testable predictions that can be made apart from "It happens?"