So if the Jewish Kabbalists are right and the speed of light is the boundary (firmament) between the physical and the spiritual then it would stand to reason that any scientific research into superluminal phenomenon would be expanding the meaning of physicality to include part of the spiritual realm.
Likewise, if the boundary (firmament) is dimensionality per se then inter-dimensional laboratory tests that might be performed on gravity (or perhaps virtual particles) would broach the spiritual realm and expand the meaning of physicality.
Even more interesting, from your observation, all the research that we perform on physical realm manifestations of spiritual events (which to us believers is everything) is research into the spiritual and again physicality includes some of the spiritual.
All very fascinating, js1138. Thank you!
Perhaps now I ought to change my definition of the metaphysical naturalists worldview to be that his anchor is his own apparant self-awareness, he sees all that there is as that which can be observed or inferred by what he believes to be physical sensory perception, reasoning or experimentation?
Most of what we observe is actually inferred. This is true of science, religion and everyday experience. And inference is extremely susceptable to error, which is why science demands multiple avenues of evidence, and wherever possible, repeatablity.