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by OscarCunningham 904 days ago
Lawyers don't really think about these things in the same way that mathematicians do:

https://en.wikipedia.org/wiki/Thalweg#Thalweg_principle

> The Treaty of Versailles, for example, specifies that "In the case of boundaries which are defined by a navigable waterway" the boundary is to follow "the median line of the principal channel of navigation."