Architects & Engineers for 9/11 Truth

How did the structures collapse in near-symmetrical fashion when the damage was clearly not symmetrical?

— Architects & Engineers for 9/11 Truth

The main puzzle was how two buildings with highly asymmetric damage could fail vertically downwards into the strongest part of the buildings — their steel-columned cores. And not only fail vertically, but at a speed that indicated structural resistance being removed sequentially from under the collapse wave. Few engineers would imagine buildings a quarter-of-a-mile high failing vertically, into their main structures, rather than failing laterally — given the eccentric damage.

— Architects & Engineers for 9/11 Truth

Symmetrical collapse requires simultaneous failure of all supporting columns.

— Architects & Engineers for 9/11 Truth

Perhaps it might be possible that the building floors would pancake down, but the huge steel columns would be left protruding out the top as the floors went down.

— Architects & Engineers for 9/11 Truth