rust is confusing. what the hell is a Pin<&mut Self>. you want me to pin you? slam you against a wall and make out with you maybe?

rust is confusing. what the hell is a Pin<&mut Self>. you want me to pin you? slam you against a wall and make out with you maybe?
that would be far more attractive than what it actually is (which we finally understand but we are unconvinced that this knowledge is going to help us with anything other than Rust)