Controlled demolotions don't mimic accidental collapses, and accidental collapses dont free fall for 15 floors.
There must be tons of data supporting such an assertion then right Ignorance.
Rhetorical question, twoof doesn't adhere to the scientific method. It adheres to the mindless drone method of repeating idiocies hoping for some gullible dupe to lap it up.
Thanks for playing.
You make it easy because,
[Your] Ignorance is [Your] Bliss