My thinking is not based on "party line" or cognitive dissonance. It's based on the reality that very few reputable engineers who have systematically and thoroughly reviewed the evidence have come to your conclusion. I have no reason to believe you over them. For instance, saying WTC 7 is a steel frame design is an oversimplification. WTC 7 employed a web column design. In this instance, the design allowed for a single point of failure. Also, the tower collapse did impact WTC 7 directly. Your assertion that it didn't runs counter to the evidence."