Common sense?
So fire and fragments melted steel so that it crumbled on top of itself and the entire buildings all fall into the next floors like buildings which are fallen via demolition?!?
Ok.
Also, people laugh at conspiracy but they don't care about liars?!? The USA SAID THEY FOUND WEAPONS OF MASS DESTRUCTION in Iraq. Iraq had collaborated with Bin Laden and Al Qaeda allowing the terrorists to carry out the plan? All of this has been proven false. They are blatant lies. It shows you can't trust them. No on talks about this. They concentrate on other things and have no evidence to support the official story. Also, you look at Building Number 7.
People are so indoctrinated and conditioned to believe the official story but if you don't, you are obstracized and ridiculed as a crazy person and not part of the society. It is a great society where free thinkers are celebrated, surely.