Interesting clip pulling together a lot which has been said here and there since the horrific event.
I’m not an engineer, architect or a pilot, so can’t speak from personal expertise. However, what to me seems very odd & unusual is the ‘terrorists’ ability/skill in flying those planes. Particularly the one that hit the Pentagon - for the latter, I think it would require a pilot who has had a great of deal ‘actual’ practice, not only in a simulated environment. As far as I recall the official story was that those terrorists only learned to fly several months prior to the attacks? Fast learners with exceptional skills!
The core of the towers turned to dust, so even if the 'pancaking of the floors had happened as told by the agents of government psy-ops, the core should have been standing there without floors attached. The box columns were massive and would not have melted away. They were truned to dust, somehow.
Flying is not that hard once the planes are in the air. Even I have flown a plane.