I am NOT an engineer, but I come from a long line of builders and engineers. My uncle is a famous inventor and aircraft engineer. So I understand concepts when they are explained. There are several facts that bin Laden understood that Gage has no concept of. Since you are so interested, I will explain this again, as I have in the past, in this forum.
bin Laden attempted to blow up the WTC once and failed. He then bought a copy of the "as builts". The final drawing set of the plans as the building was constructed. These documents can be purchased through channels when you want to understand design features for some reason. Anyway, the as builts showed the change in the fire insulation method on the beams. The EPA code on asbestos changed as these towers were constructed. The planes went in just above the insulation change line. The new fire cover was no where near as efficient as the old covering. When you add 40,000 gallons of jet fuel in a closed space the steel twisted and melted. Also, the weight per square foot had been maxed out because the buildings were occupied for so long. That is a common issue with all commercial buildings. Finally, the fuel load was enormous because the buildings were full of paper documents.
These are only a few of the facts Gage overlooked. There are other numerous issues as well. Gage is an empty suit.