First, it's easy to say what those little puffs aren't: High explosives such as those used for controlled demolitions, since they neither looked nor sounded nor caused seismic spikes like CD cutter charges, and of course the building did not fall until much later.
As for what they are: It appears that you are laboring under the misconception that the damage was only to the impacted floors. If you will please read the NIST report sections 2.3 and 2.4, you will see that the initial impact caused broken windows and interior wall damage all the way down to the lobby, and that jet fuel pouring down the elevator shafts caused explosions that blew out elevator doors and walls and started small fires all the way down to the basement.
> And we know people who were inside of the buildings heard explosions. But I guess you guys just ignore all that.
Actually, no, "we guys" apparently need to explain over and over and over that not everything that sounds like an explosion is an explosion, that not all explosions in a building fire are caused by high explosives, and that it's ludicrous to suggest that demolition charges sufficient to bring down the towers would only have been heard by people inside the building. They would have easily been heard in New Jersey, and they would be heard on virtually every video of the collapses, and they would have left an unambiguous seismic record. This is the exact reason that the "truth movement" invented the idiotic "thermite" theory, completely ignoring that thermite could not have caused the "squibs" and sudden coordinated collapse that they previously claimed "proved" a controlled demolition. "Truthers" are the ones who need to do a lot of ignoring in order to maintain their controlled demolition fantasies.
In anticipation of the typical next phase of the discussion: In order to make the extraordinary claim that those little puffs must be evidence of a controlled demolition, you need to have some rational reason to reject the obvious and mundane explanation, and your personal incredulity won't do it.
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