Architects are professionals. Do you not respect professionals? Why do you ignore the opinion of 350 licenced and degreed engineers and architects. Building collapses, or rather their avoidance, is their speciality.
We ignore their opinion because it's stupid.
All those architects and engineers, working towards a common cause, with years and years to perfect their arguments... and not a single journal paper? Not even a
conference paper?? How can this be?
This is only possible if they are actually
avoiding a scientific argument. Or if they're so incompetent that they get summarily rejected with every submission, or if they know they're incompetent and don't even try.
Not good enough? Here's another reason. One of the very best of the
AE911T morons is Tony Szamboti. Unlike most of them, he actually is an engineer. Unlike virtually
all of them, he actually has written some whitepapers -- stupid ones, but at least he tried, and he did so with enough organization that we can find out where he went wrong, unlike the others who typically write in crayon. He's put out more original material than Richard Gage himself.
Well, guess what, I debated Mr. Szamboti. Maybe you've heard. You know, the subject of this thread, that you are so busily derailing. And I creamed him without cracking a sweat. You may therefore assume by induction I can humiliate the entire gang of them at will. I probably won't even have to work a single calculation to do it.
That is why we ignore them. Their incompetence is so phenomenal that they are not even recognizable as a parody of a valid authority.
Neither are you, for that matter. For instance:
For a given structure built with given materials, there has to be a limit to how fast the collapse can progress.

Well, sure, if sub-light counts. Or even subsonic, I think that's safe. One more time, my whitepaper, Appendix B. Real simple.
When the amorphous rubble falls onto the top floors of the lower section, you want the connections between the floor trusses and the perimeter columns to shear, hurling columns for hundreds of feet, while the connections between the same floor trusses and the core beams hold firmly enough to bring down the strongest columns of the core.
I explained, in the presentation accompanying the debate, my hypothesis of why the lower core preferentially resists destruction. This matches what was actually observed, which is why I came up with it in the first place. Your response is not even babble. It's Truther Mad Libs.
Which upper debris would that be? Individual beams, concrete, floor trusses, desks, filing cabinets? Has anybody worked out the energy required to shear off one seat?
The force required is in NIST, of course. And in case you haven't heard, the "upper debris" massed about 34,000 tonnes.
Why would ANY architects be challenging NIST's explanation for the collapses? Are these clinically insane architects still allowed to design buildings? Have you complained to the architect licencing body?
Funny you mention that. Mr. Gage was forced to remove the AIA logo from his materials. Gee, I wonder why.
So could we ever visually spot the difference between a controlled demolition and a progressive collapse (ignoring flashes and broken windows)?
Pretty much always. The only confusion occurs among folks like you, and only when you start claiming that all collapses are controlled demolitions. Orwell said something about folks like you, I believe.
Science is for the crime lab. Motive is for the detectives.
I already demolished the motive argument as well. It's pretty easy to do.
The motive behind the destruction of the WTC is inseparable from politics.
If you mean the
real motive, expressed by bin Laden, I might agree with you. But if you mean the "motive" of the FDNY, which you believe murdered a large fraction of its own staff, you're wrong. That "motive" is inseparable from insanity, not politics.
It's the kind of collapse demolition teams dream of.
I'd like to see a graph of this progressive collapse showing observable failures at the roof level plotted against time, then compare it to a similar graph of the WTC7 collapse. I suspect the former would be a straightish diagonal line, whereas the latter would rise briefly, remain flat for most of the graph, then hit a brick wall near the end.
You suspect wrong. NIST describes why the collapse of WTC 7 progressed the way it did -- all of it. The falling penthouses, the timing, even the "free fall." Funny thing, I've never seen a single Truther even acknowledge this. It's as if you can't even read the report. Too many big words, I guess.
Anyway, it's come to my attention that
you are a no-planer and you do, in fact, accuse the FDNY of demolishing the Towers. You also evidently don't believe in
Apollo 11, and who knows what else. Compared to this
grand mal rejection of observable reality, the spurious complaints you've made in my thread are barely a chip in the iceberg of your ignorance -- I'd have better luck trying to teach Scrabble to a caveman than correct your drivel.
You need a doctor, not a scientist. And you've more than earned your ticket to Ignore, which I strongly suspect isn't your first. Read
here if you have any further questions. Good luck to you.