But the buildings started collapsing right at the impact. Check here at 5:55. You can clearly see the top collapsing and the building beneath the impact not moving one bit until the top collides with it.
Well, they were crashed into by jet airliners that blew holes through the building at the point of impact you are talking about. Massive fireball, burning for hours and all that. It is not implausible that that would affect the fall of the building.
But the buildings started collapsing right at the impact. Check here at 5:55. You can clearly see the top collapsing and the building beneath the impact not moving one bit until the top collides with it.
https://youtu.be/UVhhu5OjMf8?t=352
I just don't see any way to predict or pull this off without some magic.
Well, they were crashed into by jet airliners that blew holes through the building at the point of impact you are talking about. Massive fireball, burning for hours and all that. It is not implausible that that would affect the fall of the building.