Comment by SilentLambda

Yes, but remember is the last appendix to a book, and book provides the context for this appendix. So yes, in that sense, it's just another one attempting to address the memory-safety issues of C. At least this one uses C like syntax and doesn't require C programmers to learn some alien syntax. Of course, this is just a spec, Rust is well and truly live in the environment. The book is more interesting than the spec.