"A Treatise on the Endless Chain" by George Blake ...

has anyone been able to understand the "Falling Knot" explanation?
Looks good, but reading and trying to follow the diagrams ... I am getting nowhere.

Can anyone help me out here, please? ...

Goodness ... no one?

I don’t have Loopy Loop, but are you referring to the effect where a knot is formed in the chain as it dangles from one hand, then works it’s way down the chain and seemingly drops into the other hand waiting below?

The chain is tied in an simple overhand knot. When you pull one side of the chain up, the knot will slide toward the bottom of the loop of chain, and when it reaches the bottom it will dissolve into nothingness. Hidden in your free hand is a knot made from a seamless loop of chain--no ends. You reach up to "pinch" the end of the chain just as the knot disappears, and either show the fake knot in the hand or let it drop to the table.

I’m guessing that the OP is referring to the fact that forming the knot and walking it down the chain with one hand is not explained very well in the Loopy Loop instructions. Loopy Loop appears in Lewis Ganson’s The Art of Close up Magic, but the “knot” explanation is not very good. Basically, the chain is draped down the back of the hand , held between the thumb crotch and the pinky. From there, reach down to the length of chain closest to you , clipping it between the first and second finger tips of the same hand. Let the chain fall off the hand , but keep it clipped between the first two fingers. A knot will form. From there , it’s an easy matter to manipulate the chain so the knot will fall to the bottom , before dissolving.