Needs some proofreading: "Until then, you can think of String data as string data that can change as your program runs, while &str are immutable views into str

Needs some proofreading: "Until then, you can think of String data as string data that can change as your program runs, while &str are immutable views into string data that do not CHANGES as your program runs." // Instantiate a tuple struct by passing the values in the same order as defined. let origin = Point2D(0, 0) // Missing ;