near the center of the roofline". This was as the entire building began to collapse. According to NIST, Building 7 was in freefall from 1.75 seconds into the building collapse through 4 seconds or 8 stories equaling 105 feet. They aren't talking about the penthouse. This was an observation of the north face of the building at the center of the roofline as it collapsed.
That said, there are several side by side video comparisons on youtube that are run at the same frame rates, between the building 7 collapse and those of demoed buildings and the difference in acceleration rates is indistinguishable. Sharkhearted supplied a good video of this on one of his posts which you should have watched.
Your half baked theories do not trump what I can clearly see fireant.
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