Your inability to comprehend the physics involved and the technique for harnessing the strengths of the tree, mating those two forces to accomplish a task, really says more about you than others.
There is skeptical and then there is hard headed, varying degrees of each of course, but at some point a bunch of people saying it is possible and others that can explain it in a way that is understood by professionals in the field indicates that we are in hard headed territory.
But here, I'll give you another little bit of help just in the name of fairness and international relations.
Clump of three trees, one on top left stays. Top right was an easy drop right into the lay. Bottom tree was leaning the wrong way and short way around won't work because of the keep tree. It could have been jacked, but that takes a good bit of time and a jack which was not on site. I could have swung it less, but if I set it between the stump and keep tree it was almost perfect for skidding toward the right bottom corner.
Black arrows show lean of each tree.
Long red arrow shows the path of travel that the very top of the tree followed, right out of the picture.
Blue lines show where it stopped.
As you can see the top movement only described about 180° but the final result was much farther off the lean. You can get the first 80° or so from the lean with almost no top movement toward the lean, heck just the face and a fat hold can give you that in a strong tree.
Initial top movement is consistent with the lean, meaning it goes where gravity is pulling it, but we stop one side and let the other drop a little bit more so we change the direction the tree is leaning and where gravity is now pulling. As we get into it we have sideways momentum that we can build on. We keep doing this until the tree points the way we want it to go. Done right it happens smoothly and softly, you shock load with a bad cut and you tear out your holding wood.
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