I know. I said critical function for a reason. If you can remove it, it's not critical. The point is, "but evolution" is a weak argument to justify any particu

I know. I said critical function for a reason. If you can remove it, it's not critical. The point is, "but evolution" is a weak argument to justify any particular feature of an entity facing selection pressure. The laryngeal nerve detour would have been a better example but I wanted to stay accessible.