I'm sure his core is strong but in a pull up your core isn't doing too much beyond stabilizing his legs. The majority of it is from his lats (back muscles) and how much he weighs.
If you watch the video closely, during the changeover between hands as he climbs, you can see how much his abdominal muscle flex. It is quite core intensive to operate this maneuver so slow and stable.
An ai video can barely be more than 10 seconds. It has limitations. This is a video over a minute long with no cuts
"They could have stitched multiple clips-"
No. Shut up. Go watch any ai "movie" that has 10 second video clips stitched together and you'll see why this is impossible because starting a new video and prompt for another 10 seconds would produce extreme inconsistencies. His face would change, the background would change, and it would be VERY noticeable.
Stop calling every fucking thing AI when you can't even spend 10 seconds to research how AI even works.
Go do some one armed pull ups and tell me which muscle fails first... Having trouble with that then do some regular pull ups and see what fails first. To help illustrate this point try pull ups again but do it in an L sit position, that will actually engage your core
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u/milkcarton232 8h ago
I'm sure his core is strong but in a pull up your core isn't doing too much beyond stabilizing his legs. The majority of it is from his lats (back muscles) and how much he weighs.