You can do a singly linked list just fine. But with a doubly linked list, who owns the memory to each node? In reality, you can do a doubly linked list with s

You can do a singly linked list just fine. But with a doubly linked list, who owns the memory to each node? In reality, you can do a doubly linked list with something like `RefCell`. See the famous blog post on linked lists in rust here: https://rust-unofficial.github.io/too-many-lists/fourth-building.html https://rust-unofficial.github.io/too-many-lists/fourth-buil...