The previously posted comment that includes the statement, "But, I think at small scales sound is closer to buffeting (like how water is the consistency of gela

The previously posted comment that includes the statement, "But, I think at small scales sound is closer to buffeting (like how water is the consistency of gelatin for microscopic organisms, waves can't propagate)" at least gets to the idea of fundamental physical constraints. Brownian motion[1] shows that movement of molecules (which is what sound is) happens through mechanisms that don't scale down as well as propagation of light. You can magnify light down to images of much smaller objects than you can listen to sounds from small objects because small objects don't make specific sounds, but rather are buffeted around themselves by essentially random motion of the fluids that surround them. [1] https://en.wikipedia.org/wiki/Brownian_motion https://en.wikipedia.org/wiki/Brownian_motion