Wow, that's one long video.
I'll take time to watch it (or at least some of it), just not now.
As 2k says, there are conspiracy theories about everything.
Heard the one about the flight number, type it in Wingdings font and you get two towers, a plane and an explosion?
Something like that anyway.
That's a complete fake, the flight number isn't the one used there.
Just another prank by people thinking it's cool to mislead people, you know?