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xkcd #2880: Sheet Bend
(imgs.xkcd.com)
Alt text:
A left-handed sheet bend creates a much weaker connection, especially under moderate loads.
I want to see IRL photo of this connection.
The knot also needs to be adapted for common two-core electrical appliance cable, if you remove a piece of the insulation on one side and with an offset on the other side, the cable needs to be twisted mid-knot to match the correct wire.