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Daniel, I think that it is maybe a simple question if more information is available. We only see a limited amount of information.
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Ya, You have a limited amount of information, yet you make up stories about what happenned.. and what didn't happen.. that is my point.
I went to a yoga conference recently where a yogi was commenting on the prayer "lead us from unreality to reality".. that is the essence of yoga.. the human condition has been plagued by the stories we make up about who we are and what our relationship to the world is. These stories, which we tell ourselves and which many are so attached to, are completely false, as they result from the limitations of our perceptions (5 senses) and the minute level of our experiences. Our attachment to these faslehoods is the source of all suffering, as the truth of our being is so grand ..
This video has been greatly misunderstood, and often demonized..
In part due to the mistaken chronology in the editing, which shows the notch being cut after the line is pulled.. The notch is visible in both initial pulling sequences showing that it and the backcut were made before the tension was put on like that..
The other part of the misunderstanding is that people make up stories based on limited information.. they see some little part of a job in a video and don't think that there might have been a lot more going on than was shown.. and for some reason, many seem to think its the producers obligation to demonstrate the techniques and calculations used to ensure the safety of an operration..
If you look closely there were four line legs coming off the top of the tree.. , one retainer line and two pull lines... one pull line was doubled.. test pulls were made before cutting the notch, two lower limbs had been cut back to prevent limb lock, again they are visible as the tree stands up..
Load limits were kept to 50-60% tensile..
and much more..
you may think it looks like a "hope and a prayer cut", but it was 100% in my mind.. the only variable was the need to make the final cut. Once the piece stood up, I tried to break the hinge with the retainer (right angle) line. When that failed, I stepped in and cut the holding wood to trip the tree into the field, as I didn't want to lay it up into the trees that were being used as ground anchors.. By the time the tree started to stand up there was less force needed to do the pulling, thus ensuring the ropes would not fail, as they had held at much higher applied force.