Chapter 15

1. What's the memory representation of an interface in Go?
   An interface in Go is represented by two values—the first one is the interface concrete type, while the second is the value for such a type.
2. What happens when an interface type is casted to another one?
   Since interface values need to be a concrete value, and cannot be another interface, a new interface is created with a different type and the same concrete value.
3. What are Value, Type, and Kind in reflection?
   A Value, as the name suggests, represents the content of a variable; a Type represents the Go type of a variable; and Kind is the memory representation of a Type and refers only to built-in types.
4. What does it mean that a value is addressable?
   An addressable value is a value that can be edited because it has been obtained by a pointer.
5. Why are structure field tags important in Go?
   Structure...