It's a feature that's necessary when dealing with FFI or when implementing containers. It's a tool, rather than a crutch to work around the borrow checker. In f

It's a feature that's necessary when dealing with FFI or when implementing containers. It's a tool, rather than a crutch to work around the borrow checker. In fact, unless one is using raw pointers everywhere, it's very impractical to use unsafe blocks to circumvent the borrow checker.