Can you create a recursive closure in Rust?

Hi everyone! I'm learning Rust and trying to write a recursive closure to compute factorial. Here's my code: ```rust let factorial = |n: u32| -> u32 { if n <= 1 { 1 } else { n * factorial(n - 1) // error: cannot capture `factorial` in its own initializer } }; ``` The compiler gives an error: "cannot capture `factorial` in its own initializer". I understand that a closure cannot capture a variable that hasn't been fully initialized yet. But how do you make a recursive closure then? I tried declaring `factorial` as `let factorial: Box u32>`, but that didn't help. I know I can use a regular function `fn factorial(n: u32) -> u32`, but I need a closure specifically because I want to capture external variables. Please advise on how to