I'll give it a shot, let's see how low I can go.

When an 800,000 lb plan collides with a structure at roughly 400 miles per hour that energy is transferred to the structure. This would momentum would sheer many secondary supporting structures on its way theough. Any sizeable chunks (particularly the engine) that strike the primary support beams could easily dislodge them from their optimal positions.

This sort of tremendous force coming from an angle that was never imagined by the designers would seriously compromise the structure.

Now there were quite a few floors on top of the impact site. That's a hell of a lot of weight sitting on top of a now seriously compromised structure.

Now take that scenario and add the fire.

I imagine it knocked the sprinklers out for the surrounding floors, although they wouldn't have helped too much.

A 747's fuel tanks, like most airplanes, are located inside the wings. When they follow the fuselage through the intitial gap in the building, they're going to either fold back again the plane, or sheer off, depending on the amount of resistance they meet.

I imagine it did a bit of both, but either way, upon entering it started spraying fuel which became an aerosol and ignited.

Let me side track for a moment and remind you how intense a normal office fire is. Basically everything in an office building is flammable. Some of it like that cubical wall or the hundreds of pounds of paper is more flammable than others. Office fires burn fiercely due to how hot some of that shit burns at.

Add that into the equation.

So basically all of this heat would travel upwards through the path of least resistance, the elevator shaft. It would eventually heat some damaged beams to the point that they would slump. All this weight compiled on top of them would force them to slump even further.

Eventually one fails, maybe that wasn't enough, perhaps more started to fall, causing a cascade.

It all seems reasonable if you look at the physics of it.

Now, inb4 as the kids say.

I can't explain shit for WT7, maybe the CIA took an open opportunity to get rid of some stuff.

Also explain to me how none of these skyscrapers crashed into its own footprint. https://imgur.com/a/w5iuG

Funny how there are no depictions of the south side of 7:

https://www.youtube.com/watch?v=_WJgFc4wIaQ

http://www.911myths.com/html/wtc7_fire.html

No one ever replies after you mention building and 7 together in one sentence. It was clearly an inside job, no one wants to admit it though.

what i do know is that silverstein had 0 permits in place for emergency systems like that,

Is there such a thing? I mean, who wants to work in a building that can be set to collapse instantly? How could such a permit even be legal? Every building I have ever seen with charges placed on it were off limits to everyone unless they were setting the charges.