You're exactly right. The IVs are completely predictable, and crucially, that allows us to guarantee that they are not reused. The security of CTR mode of encry

You're exactly right. The IVs are completely predictable, and crucially, that allows us to guarantee that they are not reused. The security of CTR mode of encryption depends on avoiding IV reuse. Once again, I'm very happy to have this discussion at length! I just would prefer a context where people are not confused by misleading information from the start, and the readers are able to spend time thinking about it.