Originally Posted by Rochard

I lasted three minutes and.... Oh hell no.

This video talks about "common office fires" as if there was no real cause for the collapse. It was more like the building was hit by burning debris from the crash itself, caught fire, and then the fires continued all day. Then we have both towers falling - there is seismic damage, more debris hitting the building. All of this combined caused some of the girders to give way leading to progressive collapse.

Here is what really happened:
https://www.nist.gov/pba/questions-a...-investigation