"The diagrammatic presentation of 'structural damage' has come from somewhere - it would be good to know the source and if this is not due to windows damage only. I think I heard that there was severing of columns in that strip - not sure how this was ascertained if one wasn't inside of the building after severing"
I assumed the diagram was from NIST. As i said I was also dubious about the grey strip - seemed a bit neat, so I guessed that bit might have been a suppostion of NIST's (which would be cheeky) 0- even ignoring that though there was supposedly exterior structural damage (whatever they mean by that).
" clear image of the collapse and indicates the 'freefall' as per physics prof has shown during the open NIST Q&A. "
In the video he acknowledges the time it had freefall but it was only for a short period of the collapse according to his graph, so not sure what it indicates on its own (plus the fact that the middle seemed to be collapsing in quite a while before the rest of the building, so what was free falling could have been just the outer walls (in their theory).
"Third, the blogger has claimed that NIST collapse reconstruction is the true representation of the actual collapse seen. That couldn't be more wrong as AUni report has shown clearly. "
To be fair it's quite an old video, pre the AUni report. As I said, it's clear to me there are issues with NIST, but not totally clear that they couldn't be about how difficult it would be to exactly simulate something like a complex building collapse - sensitivity to initial conditions and all that jazz. As you say:
"There is a slight doubt as to how AUni guys represented the collapse in their model i.e. using linear as opposed to non-linear mechanism. In this case it is the representation and not the actual number-crunching part of the model methinks."
And also, here's some more nitpicking from 9/11 truth baddie mick west:
This vid I think talks about the draft and partly about the linear/non-linear stuff):
Reasonable doubt? Maybe this stuff has already all been addressed