Can a Value type store itself? And is this statement true for all value type representatives?

No, a value type cannot directly store an instance of itself. Attempting to define a field of the same type within a struct or enum will result in a compile-time error because it would create an infinite size.

However, a value type can store an optional instance of itself (Self?), a reference to an instance of another type (for example, through a class), or use indirection (Indirect) in enums.

This is true for all value type representations (structs and enums).

Example:

// Compile error: value type cannot contain a non-optional property of its own type
// struct MyStruct {
//     var myself: MyStruct
// }

// With an optional
struct MyStructWithOptional {
    var myself: MyStructWithOptional?
}

// With a reference to a class
class MyClass {}
struct MyStructWithReference {
    var myReference: MyClass
}

// With indirection in an enum (allows recursive cases)
indirect enum MyEnum {
    case case1
    case case2(MyEnum)
}