[denton-scratch]

> (photon is a wave, so it waves something)

That sounds suspiciously like postulating the 'ether'. Surely what a photon 'waves' is the electromagnetic field, which is not a medium, and which fills the whole of spacetime. There is no 'end of the medium'.

[pigpang]

"Field" means 3d array of numbers. Spacetime means 4d array of numbers. You are talking about mathematical model of Universe, while I'm talking about physics. Mountain is not just an excitement in a height field. If photon is not waving something, then it's not a wave. Physicists prove that photon is a wave.

[michaelsbradley]

> If photon is not waving something, then it's not a wave.

No, you’ve simply hit the limits of needing/wanting to understand something in terms of something else similar or more familiar.

Makes the same point on a related matter: https://youtu.be/Q1lL-hXO27Q