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I see no contradiction here and agree. I spoke about the force needed (with the same use of the body, beside the rope configuration), while the "effort" would include many parameters like force, energy loss, over-run (actual speed over the average useful speed which the system was designed...

edit, I didn't look the vids before my answer, but I keep it as is. No. That would be the case if you are on the ground trying to lift a load with just a rope and an hanging pulley. Your force/weight counterbalances the load. 1:1 It's different in the tree, as you are the load. It's called a...