A wave is often defined as a rhythmic disturbance in some type of medium.
Common types, of course, are water waves, sound waves and light waves.
But what if the medium, instead of being water or air, is the vacuum of space-time itself? Light travels thru it quite nicely.
Or further still, what if the medium is the underlying fabric of space-time, an implicit template that all physicality sits “upon?”
I am often intrigued when I am told that everything is vibration, be it by a string-theory physicist or a metaphysical guru.
Is this implicit vibratory template, perhaps, the transportation vehicle responsible for non-locality, for quantum entanglement, for action-at-a-distance phenomena such as gravity and electromagnetic fields?
You make the call…