Okay, I posted this on Quack's not the West Mall so no politics. Also no crackpot conspiracy theories, e.g. demolition in the buildings. Assume for this thread there is no massive conspiracy that happened and start your own thread if that interests you. What I want to know is this. What if the 2nd plane had not hit the WTC, like maybe the passengers managed to divert or crash it somewhere else. What would have happened? Would the first tower have still collapsed? Assuming so, what would that collapse have done to the 2nd tower that was not hit? Might the destruction even have been worse if it "knocked it over" instead of collapsing straight downward? Would the 2nd tower still have collapsed? Or just had one side ripped up badly? Any discussion appreciated, engineers encouraged to speculate.