Appreciation post: Heard a vet say something about hoof wall separation that clicked for me

That's a really good point about looking for the cause. Just one small thing, the vet probably said the wall was pulling away from the laminae, not the white line. The white line is the space between the wall and the sole, it's not really a structure that gets pulled from. The laminae are the Velcro-like stuff that holds the wall to the coffin bone. When that fails, you get separation. But yeah, totally agree, you gotta fix the reason that Velcro is letting go, not just slap a patch on the crack that shows up later.