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Re: Lateral Marks
the direction for "returning" is north to south along the coast. So it's a lateral mark with respect to that direction. The number being 34 is also a clue as they increase while returning. going from "R34" to "R2" means they are not part of the same channel.
Their is also the concept of going clockwise around a body of land.
The lesson from the Icarus story is not about human failing.
It is a lesson about the limitations of wax as an adhesive.
If you have an engineering problem solve it.