Horse feathers. I spent about 4 years as an Air Force fire fighter sitting right on the edge of the runway or some drop zone for all kinds of normal operations and air shows. That noise is unmistakeably an airliner.
Originally Posted by Hunter Rose
Cow cookies. People slowed down and their stride became less purposeful. They were confused. One lady stops at about 0:30 (you can see her framed between the man's legs) and looks up at the tower. They were gobsmacked.
Certainly, none of the passersby even react to the sound during this segment, so it is unlikely a jetliner is flying over Manhattan, 1000ft above ground at <500mph, as any such event would not result in nonchalance by passersby who were as close as these were. They are seen to be nonchalant.
The camera was hand-held. Of course it is not going to remain stable. The crash is a lot louder than a car crash. But there is no sound of the sort of explosion that would be needed to do an SFX of all that jet fuel blowing up.
0:22 to 0:23 There is a visible shaking of the camera, while the onrushing sound is still heard. Then, at about the 0:23 mark a collision that sounds like a car crash is heard. The collision is at some distance, but is pretty intense.
They probably never heard an airliner at that range before,, and did not expect there to be one in lower Manhattan. It was probably a little hard to take in all at once.
0:26 A voice is heard to say "what the hell was that" in response, not to the sound, but to the collision. I consider that significant because based on the location of the camera, if a jetliner had passed overhead at about 1000 ft above street level, I think people at that vantage point would have known it was a jetliner and would not have asked "what the hell was that."
Horse hockey. There was a lot of water to turn to steam inside the building. The smoke looks normal to me. I used to go out and practice putting out thousand-plus gallon jet fuel fighters about once a month for four years. This is not anomolous.
0:28-0:37 A this point the camera begins a process of moving from the foot shots and somewhere at about the 32sec mark we see, for the first time, the sky in the direction of the WTC.
0:37-0:51 We also see in this interval smoke ranging in color from medium gray to light gray, and predominantly light gray. The observed smoke color is completely inconsistent with a jetliner crash because kerosene burns in very thick, black billowy smoke.
No civilization ever collapsed because the poor had too much to eat.