Yeah, BB, but your theory was obviously tongue-in-cheek, intended simply to ridicule. Mine wasn't.

Neither one of us is in a position to provide proof. That's why I said it was a theory. Some theories are more plausible than others, but it depends on your pre-existing emotional bias how you will rate any given theory for plausibility.

Why didn't gravity bring down buildings 5 and 6? They burned much worse than building 7 did, and one of them got a great big hole knocked in the center of it by falling debris from the main tower nearest to it. Gravity still did not bring them down. Why?