Computers have solved many problems for us, but they create some problems too. Say, for example, that you are writing a novel. After you are done with your first draft you decide to change your heroine’s name from Linda to Lydia. With a typewriter you would have to retype every page containing the heroine’s name. With word processing software, on a computer, you press just a few keys and the computer takes care of all the work. But technology hasn’t solved all our problems. While many of Shakespeare’s original documents survive, it takes only misplaced keystrokes to wipe out your next masterpiece.

Which of the following propositions is illustrated by this passage?