That entire paragpah is total fail.
Yes steal buildings do fall from fire alone and no need for jet fuel. Look up Windsor tower fire in Madrid for a steel tower collapse from fire.
Very true..but you forget to say that the Windsor tower fire in Madrid burnt from the 21st floor down to the 2nd floor for 18-20 HOURS.
WTC 7 only lasted half that time with very small fires on 5 floors(I think) compaired to the Madrid one.