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?
i mean i might be very much looking forward to your posts but
my brain, after figuring out the source of a problem: 😌 whew that was tough
my brain, after realizing that now we have to solve that problem: 😵 lets watch youtube instead