&'static T: Valid foreverT: static: No references
'static means, the data:
&'static T: Is valid for the entire program duration (like string literals in the binary)T: static: Doesn’t contain any references with shorter lifetimes
A String or Vec<i32> is T: 'static (no borrowed data), but gets deallocated when dropped.
String literals are &'static T because the data is stored in .rodata segment of memory, not in the stack, thus is valid for the entire duration of the program.