I have not jumped to any conclusions. My conclusion is that the NIST report is incomplete, unscientific, and dishonest. I never alleged that there "must have been some mysterious reason that the alleged demolition team needed to bring down that lower part of core."
We were talking about your erroneous claim that the FACT that the core columns were accessible from the elevator hoistways is "truther bullshit". I showed that claim to be wrong.
The fact that the core as a whole could carry 3 times its design weight does not mean it could survive the destruction of nearly 1/3 of its structure. That would impose a lot of stresses that the building was not designed to resist.
The three columns in mechanical shafts are in close proximity to the elevator shafts--as you could see if you would bother to study your own diagram.
The collapse of the lower core under nothing but its own weight AFTER the outside floors had already hit the ground is a complete mystery, unexplained by NIST. If NIST believes the core toppled, it is for NIST to prove that. They make no effort whatsoever. I haven't seen any photographic evidence that the core toppled.
Your assertion of speculative theories without evidence and without authority is a real hoot. I do not make indefensible claims, your silly 
do not show that I do, and in fact your need to indulge in attitude instead of presenting facts only discredits your own case.
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