> On the recurrent laryngeal nerve in mammals: A direct route to the larynx already exists through the superior laryngeal nerve. A second path provides redundancy if one is damaged (e.g. by disease or developmental defect) > The nerve innervates the deep cardiac plexus at the bottom, and the esophagus and trachea on its way to the larynx. So the path needs to be run anyway, leaving little advantage to another route.

So the main route between NY and Philly will loop through Chicago. We will build a secondary direct route between NY and philly, but it'll only allow access to certain suburbs not the entire city [1].

This route will connect NY and Chicago on its way there, and NY and philly on the way back. I certainly don't see any advantage to any other route. not even if I were omnipotent and omniscient could I do that.

>during development the recurrent [....] own is better design than if it were not.

During the building of the NY-Philly-throughChicago route, we will be bringing life and jobs to the local communities, so this is of course GOOD DESIGN.

ps.

[1] According to wiki https://en.wikipedia.org/wiki/Superior_laryngeal_nerve "All intrinsic laryngeal muscles except the cricothyroids are innervated by the recurrent laryngeal nerve." so I don't know what you're talking about in (1)