Reply #5: Why should dust clouds not look like dust clouds?

[salvorhardin]

Why wouldn't you expect clouds of pulverized concrete produced by a building whose fall was initiated by controlled demolition to look the same as clouds of pulverized concrete produced by a building whose fall was initiated by progressive collapse brought about by severe structural damage and fire?

i.e. What would you have expected the clouds of pulverized concrete dust to look like? If you don't think there should have been any dust, or much less, then why do you think that? What scientific principles do you base your conjecture on and how would you test it?