Comment: If i'm not mistaken

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If i'm not mistaken

free fall is only possible when there is zero resistance. Structural failure collapse unless aided by something to remove all the resistance to movement would be slower and a-symmetric. Even in the NIST model failure progresses from a connection failure and is a-symmetrical. I did see the model; but I admit I did not read the entire report as such. The WTC7 did fall very symmetrical.

Mikoni