When you open the machine up, you're going to check which parts are causing it to break, not just which parts are broken. You'll fix those parts of the machine

When you open the machine up, you're going to check which parts are causing it to break, not just which parts are broken. You'll fix those parts of the machine as well, to carry on the analogy. Not that any of this is going to happen in real life. But as long as we're speculating . . .