Part 5/10:
The narrator briefly discusses the destructive power of impacts, comparing it to ballistics. They mention the significant energy released by projectiles like 50-caliber rounds, implying that the energy from the aircraft impacts was enormous. They suggest that the combined mass, velocity, and volume of the planes would have delivered a devastating blow capable of severely compromising the buildings’ structural elements.
This invocation of ballistics serves as a metaphor for the force involved, leading to the conclusion that the impact and subsequent fire were enough to cause the outer shell of the towers to collapse inward, initiating a rapid overall collapse.