Right, but you can see the effect (and I'd realized its purpose while working on my ASL animated hand pose set). When something is both not understood and has no apparent effect whatsoever - that makes the qualification 'archaic' seem more likely. :0)

C makes it easy to shoot yourself in the foot. C++ makes it harder, but when you do, you blow your whole leg off.

 -- Bjarne Stroustrup

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