I watch almost all of his videos and he had shown remarkably good judgment this season, often portaging drops he could probably run. This time he got shoved into a battleship eating hole. The guy filming him from shoreside was cheering him on as Jackson got pushed into the monster, I guess thinking he meant to be there. He did not want to surf that hole. He was trying to split a seam between two large holes and he got worked. I think he probably had trouble exiting his kayak, so his leg probably didn't get out before the hole snapped his knee and lower leg. He is to kayaking as Alex Honnold is to climbing.