I did not mean "everything" in the broader context but in the context when it comes to writing "easy" multithreaded programs. Pretty much everything in that case becomes modeled through a shared-ownership or message-passing semantics.
Since those same mechanisms are available in C++, and other languages too, making an argument that some specific XYZ algorithm re-implementation from scratch was more successful only because it was written in Rust, doesn't hold water. It was successful, for the arbitrary definition of success, in its major part because it was a greenfield project.
I believe that suggesting otherwise is plain wrong and misleading.
