This is a theory. Theory meaning it has never been proven. Waves are a description of motion in a substance. The substance can be made of particles but the motion of the substance can not be a particle. Motion is not a thing....

Please. consider what I am saying. Please don't just tell me that 300 years of smarter people have proven me wrong. I really do enjoy this conversation. Thanks.

P.S. You say "This is an experimental fact very well understood theoretically"
I ask "fact or theory?"
I know the answer. I am asking the question in the attempt to bring this to your consciousness. There are no facts in the prosses we call science. Science is a prosses.