Hiding the planting of incendiaries, explosives, or whatever? Response to a common a priori objection

Below is a copy of a long bunch of comments I’ve deleted from the thread below my post He oughta know better: Mark Roberts and the iron spherules.

The copied comments below deal mainly with the question of how thermite, etc., could have been planted in World Trade Center buildings 1, 2, and 7 without being noticed by many witnesses.

Common a priori objections by “debunkers,” including arguments from authority and the “someone would have talked” and “too many people” arguments

Every now and then I get a wave of “debunkers” visiting this blog. They’re welcome to post here; I’ve learned a lot from them. But, in the future, I would like to try to avoid certain repetitious arguments, or at least confine those particular arguments to relevant threads such as this one.

There are some a priori arguments they almost always bring up in an effort to prove that there could not have been any government complicity in the attacks of 9/11. In recent debates here, those arguments got jumbled together with other, meatier issues in comment threads.

To avoid such jumbling in the future, I’ve decided to devote this post to the more common a priori arguments. I’ll then add a rule to my comment policy requiring that, in the future, these and similar a priori arguments be discussed only in comments below this post (or other posts on these same topics), rather than jumbled together with other, more substantive discussions.

In this post I’ll also provide a brief review of my debates with “debunkers” in general, for the benefit of “debunkers” visiting this blog for the first time. Some of the discussions we’ve had here have been very worthwhile.