The phenomena being presented in videos as facts are laughably ridiculous given they have nothing in common with the crash condition of the WTC. Projectiles flying in to armored vehicles and crash tests of fixed wing aircraft on the ground with simulated wing-cutting devices are suppose to have what to with those conditions at the WTC?
It is an established pattern of evasion. Often directed against my posts because I have repeatedly challenged Koko for his use of parody physics (and also his parody "explanations" of "burden of proof" which he relies on for many claims.) On IIRC four occasions I have shown him exactly where he is wrong and he runs away as he did at Post #4 in this thread when he shifted the goalposts in the manner you have identified. Distractions nothing to do with the OP or with WTC collapse.
Note the first few posts of the thread where:
Post #1 - the OP - he makes some claims
Post #2 - he quotes part of one of my posts from another thread AND presents some reasoned comments. (he made 11 comments - Nos 1,2, 3, 7 and 11 agreeing with me - 4, 5, 6, 8 and 9 actually agreeing BUT pretending to disagree - making counter claims which I had already covered in what he quoted. THEN #10 sets the scene for the goalpost shifting derail he is setting up.
(Post #3 - he changes comment #8 - amended to "agree")
AND in post #4, he shifts the goalposts by the off topic images you have identified.
He followed the exact same tactics on previous occasions when I have explained the errors in his claims. Three in parody physics and the fourth one his parody explanation of "burden of proof" where - among other silly bits of nonsense:
A) he insists that the defence in a criminal case do not have to do any more than claim that the prosecution hasn't made its case.
B) In truther debunker discussions it is the debunkers burden to disprove all claims by truthers including the ones they haven't made.
Read through this thread searching for my username referenced in Koko's posts. You will find either a false assertion OR some needling which I ignore.