"We can write a single block of code that performs some action or processes a single piece of data, then we can write a loop around that block of code to execute it a number of times. Loops provide a much better alternative than repeating (cut-paste-cut-paste) the same code over and over with different variables. Indeed, we wouldn’t even do this in real life. Suppose that you took a 100 mile trip. How would you describe it? Likely, you wouldn’t say, “I drove a mile, then I drove a mile, then I drove a mile, . . . ” repeated 100 times. Instead, you would simply state “I drove 100 miles” or maybe even, “I drove until I reached my destination.” Loops allow us to write concise, repeatable code that can be applied to each element in a collection or perform a task over and over again until some condition is met."