> there is nothing Rust can do C++ can't but there is quite a few things you can do in C++ but not in Rust
The point the parent comment is making is that this doesn't really matter if no one actually does do these things in C++. It's absolutely wild to me how quickly the arguments in favor of C++ instead of Rust have reversed in about a decade; people used to argue that the benefits of Rust were all theoretical and in practice people who were used to C++ could write it perfectly fine without safety issues, and now it's somehow that the theory that gives C++ the advantage and we don't need to care about whether those supposed advantages ever actually exist in practice.
The point the parent comment is making is that this doesn't really matter if no one actually does do these things in C++. It's absolutely wild to me how quickly the arguments in favor of C++ instead of Rust have reversed in about a decade; people used to argue that the benefits of Rust were all theoretical and in practice people who were used to C++ could write it perfectly fine without safety issues, and now it's somehow that the theory that gives C++ the advantage and we don't need to care about whether those supposed advantages ever actually exist in practice.