[orneryostrich]

But if your program is single-threaded, you don’t need an `Rc` type. The whole point of `Rc` and `std::shared_ptr` is so an object can have one owning pointer per thread, in cases where you’re not sure which thread will finish using the object last.

[pjmlp]

Sure you do, try to implement a Gtk-rs application without the Rc<RefCell<>> dance for widgets state.