"If there is no way to demonstrate the objective reality of those things, they are by definition in the realm of mysticism." Sure, that is your classification

"If there is no way to demonstrate the objective reality of those things, they are by definition in the realm of mysticism." Sure, that is your classification of concepts. However, know that your classification using semantics does not negate whether or not the actual reality exists. Furthermore, they cannot be demonstrated with current tools. Electrons were not able to be detected thousands of years ago, but now we have the tools to prove their existence. This does not mean electrons did not exist prior to our development of tools to detect them. The Randi challenge is a great point and I have already thought of reaching out to Robert Bruce on his forum to ask him why he himself does not submit a proposal to the institution, seeing as how he is an advanced projector. Personally, I am in the beginning states of consciously projecting and controlling the astral body, my fear usually gets in the way of completely separating, though I have floated out of my body and into the ceiling, numerous times.