I was in lower NYC, not far from Ground Zero, on 9/11.

What do you think about my conversation with an architect that I met on the subway after leaving the area of the attack, before the towers fell, that described to me exactly what was going to happen?

There must be others like him that predicted the collapse, but I never hear about any. Since it happened so fast there probably wasn't time for postings to be placed on the internet.

Have you seen or heard of any documented cases of similar professional opinions posted, or otherwise offered, between the time the Towers were hit and their collapse?