If you need to make deliveries along the whole path from NY to Chicago to Philly, the path makes sense. If the road is necessary to anchor Chicago and keep it from floating away during the development of the United States, that's another reason, although our analogy is becoming strained lol.

If you are missing either of the superior or recurrent laryngeal nerve, you can still speak, although not as well as if you have both. Doctors use this hoarseness as a diagnostic for various chest issues.

United Airlines Flight 232 also illustrates the importance of running redundant cables through different paths. One piece of shrapnel pierced all three hydraulic systems on board, and nearly half the passengers were killed.