“Using” memory safe languages as in selecting a language for green field projects vs “using” to mean “rewrite in” are two very different propositions. I don’t think many would consider rewriting a million line code base in a different language without other motivation than fixing memory safety. However all large code bases have some modularity and modules are added and rewritten. At that point the decision to use a different language is easier. That this now happens in Linux and elsewhere is a clear sign of the times.
