<'_> is one of the most basic symbols in Rust. Reading that is almost like reading the letter 'a after just some very modest amount of time with the language.

<'_> is one of the most basic symbols in Rust. Reading that is almost like reading the letter 'a after just some very modest amount of time with the language. > How come is it in demand? Because there's a lot more to the language than just those not-really-unfamiliar symbols