@cicerone imposter,
Unless the scientists are able to duplicate exactly what happened, their opinions will be based on "best educated guesses."
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That's the point, scientists studying 911 have been able to describe what happened and have performed experiments to back that up. And the scenario they have described matches the reality much better than the pseudo science of the official NIST investigation.
But first, let's focus on reality. There was no legitimate fuel source that could have melted the metals that were found to have been melted. Certainly the alleged hijackers had no such fuel, being as all they "had" was jet fuel.
Jet fuel and office furnishings cannot produce the temperatures required to have melted these metals.
We now have a scenario that wasn't at all what the official government story described. We now have a scenario where NIST's study is nonsense. If steel was melted, there had to have been an alternate heat source capable of doing that.
Therefore, the alleged hijackers were not responsible for the collapse of the three towers. Don't you agree that they would have had to have been pretty grand magicians to knock down three towers with two planes?