Exactly and let's just examine Ignorance is Bliss' claim that the scientific method wasn't followed.<quoted text>POT meet the kettle.
The evidence was collected by various agencies. It is you who dismisses it because you believe in propaganda.
The onset of the investigation included the visual inspection of steel for indicators that would help the investigation team determine what the most probable cause of collapse was.
This steel was then subjected to positive material identification to determine whether or not each grade conformed to the mechanical and chemical requirements for that specified grade of steel.
Once that was established, previous experimentation for the behaviour of those grades under the given conditions was used to determine how the steel itself behaved in the fires.
Minimum fire temperatures were determined by examining the cracking of paint and primers used to coat the steel against previous experimentation based on those same coatings.
The truss systems were scale tested in independent labs in the US and Canada to observe how they reacted to the fires.
Hmmmm...seems that NIST not only conducted their own experiments but also relied on a body of data done by others in their investigation.
Now all of this information was used in the computer modelling done to determine what the most probable cause for collapse was...so is there any validity to his claim?
No, of course not. He's just chanting twoofer mantras in the hopes that some gullible fool will check his brain at the door and follow his inept azz down the rabbit hole.
Meanwhile, he gives credence to said twoofer mantras that have zero validity and misses the fact that if was correct, every crash/failure investigation done for the last 50 years has been invalid.