finished ch10

Lifetimes.md

@@ -442,3 +442,21 @@ There are two input lifetimes, so Rust applies the first lifetime elision rule a
 Then because, because one of the parameters is `&self` the return type gets the lifetime of `&self` and all lifetimes have been dealt with
 
 ## The Static Lifetime
+One special lifetime is the `'static`, which denotes that the affected reference *can* live for the entire duration of the program
+
+All string literals have the `'static` lifetime always
+
+Here is how we can annotate it
+```rust
+let s: &'static str = "I have a static lifetime.";
+```
+
+The string literal is stored in the program's binary which is always available
+
+You might see suggestions to use `'static` lifetime in the error message.
+
+Think about whether or not the value being referenced/the reference will always be valid before adding it
+
+Most of the time the suggestion comes from attempting to create a dangling reference or a mismatch of the available lifetimes, instead of adding a `'static` lifetime annotation
+
+Instead the solution is to fix those problems