Sigh.... These arguments
Since you still think a building can't fall - more or less- straight down, I'll quote myself a third time - I hope you start to understand 
Physics says that gravitational force points into the center of the earth. So for it to not collaps straight down you'd need a great enough force to pull it to one side. This force might occure or might not. But generally there is no need for it to not-collapse straight down; it's just not true to say so.
For it to slide to one side that force might be due to a leaning ground; but if the ground is rectangular to the force of gravity, this force is 0 since m*g*cos(90)=0.
Also, you still are thinking your "free fall argument" holds any validity, when it has been shown multiple times it does not.
What in the world is this? On object will always fall into the path of the least resistance... This is all a demo is, manipulating mass and removing resistance. Why do you think the number one issue with a demo is making the building fall into itself...it's hard, not easy...And certainly not natural.
When was the last time you cut down a tree and it fell into its own foot print? Seen failed demos? What happens? they either don't collapse, fall over a direction, or partially collapse.
If I am drunk and fall over, I am going to fall forward or backwards, not vaporize into my own foot print.
If the windows were blown out from compression, it would not be just small spots, just so happening to be in the most useful spot for a demo. Excluding lower ten and upper ten...This is demo 101.
If they were blown from compression it would be entire floors.
Which is why I suspect it was just deformation of the window frames. On the other hand, many of the floors had already collapsed according to the NIST. This would make oddly shaped chambers for the air to flow through.
The core was not concrete, it was steel encased in concrete, with fire retardant material.
You both keep saying "core" singular. Was there one monolithic "core", or were the 20 something central columns each individually encased in concrete?
What?? For starters, multiple core supports, we just refer to it as the core for simplicity.
Deformation of the window frame? This would cause breaking glass, not exploding glass. Plus in a nice pretty line on both sides and in the center...Only there...On 100 percent mandatory positions for a demo...Exploding...Not in the upper or lower 10...Just like a demo...Not to mention DURING it's free fall...Just like a demo.
Lower core, penthouse reacts, then right there, hit the mid section, the rest will take care of itself. Perfection.
If it walks like a duck, looks like a duck, smells like a duck, feels like a duck....It's not an elephant.
finally if it was a demolition, why did they leave the center core, alone it was still standing 20-30 stories high at the end.
I don't think there is any evidence of this assertion.
Here you go. WTC1
That is not the the core column.
Try again.
So what do you think it is?
This video was slowed down anyways, I don't trust it to begin with. Second, no way that is the core, an absolute impossibility.
This would be with controlled demo or the NIST fairy tale.
The way 1,2 and 7 was designed you MUST comprise the core, that is 100 percent mandatory if you don't want it to get ugly. This is with the pancake magic, or with reality.
Poll