The action that we see in this video required temperatures of around 3000 degree F. At the same time this was happening WTC6 became a burned out hulk with evidence of extremely high temperatures. Cars and trucks on the surrounding streets were photographed and seen by witnesses as they melted and burst into flames, some of them up to six blocks away. WTC6 held an arsenal of guns, some of which were found in the debris. Some of them are now in the NYPD Museum on exhibit with concrete and steel melted together. It requires around 3000 degrees F. for this to happen.
Part of this video is in slo-mo which gives plenty of time to see falling debris turn to dust before it gets to the ground.
I can’t explain the extreme temperatures nor the massive energy release that we see here, but it sure looks like a new investigation is needed with all of the evidence on the table.