Hitches : Are they "knots", like bends ? If they are, where are their nubs ?

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The “Neutral” parts are , imo, part of the knot. I don’t feel that these so called neutral parts are in fact neutral. They play an important role in those particular knots. Most knots, again my opinion, are compound structures. Yes, we can make a knot that does not do any work, decorative ones for example (though they can do work or a job). A drawn knot or a knot-board’s entries does nothing, but they are still knots.

We can see all manner of things within a simple or complex tangle we call a knot. We can even see this in un-knots, such as the Blackwall hitch, that I have used for years as a method of tying off mason’s twine to layout foundations of houses.

Hitch: To connect or attach.

So, within many/most knots there are hitches (not all!). A compound structure for sure.

SS