Everything in the universe is either mass or energy (and mass is energy), so making claims about vinyl being "physical" doesn't need to be said. I assume they had a point to make, and I'm hoping that they will make it more clearly.
Sorry. I was just saying that a CD is a digital representation of sound. If you had a CD with a document on it you wouldn't call it a physical copy.
However on a vinyl record the sound is physically represented in the grooves. It is as near to a physical representation of sound as you could get. Like a physical document is on paper.
CDs are the children of floppy disks, not vinyl. They are digital (it's in the name). Vinyl is actually physical beyond bits and bytes.