Focus on the scientific paper that found red/gray chips in the wtc dust. These chips contain the elements for thermite and combust at high temperatures.  No.  These chips do not contain the elements for thermite.  They have aluminum but they do not have elemental Aluminum....this is what makes thermite so reactive.  Aluminum is a very reactive metal....it wants to be attached to something else  elemental aluminium reduces the oxide of another metal, in this common example iron oxide, because aluminium forms stronger and more stable bonds with oxygen than iron:  Thermite is a mix of Iron(III) oxide elemental aluminum (this is the most common kind of thermite) Fe2O3 + 2 Al.   When it undergoes the reaction, the Oxygen is ripped from the iron and bonds with the aluminum and you get → 2 Fe + Al2O3  The products are aluminium oxide, elemental iron,[3] and a large amount of heat.   What this chips have is Kaolin which is a mineral also known as china clay.  It has aluminum but it's already bonded to other elements.  It's not elemental aluminum, the formula is  Al2Si2O5(OH)4. China clay has a lot of industrial uses including controlling gloss in paper in and paint. https://en.wikipedia.org/wiki/Kaolinite#Uses In fact the Red and Grey chips are paint bonded via an epoxy to a layer of Iron Oxide aka rust.  It's the red primer paint they used on the floor trusses at the WTC.  It was matched to the primer paint used by Laclede Steel https://www.metabunk.org/attachments/laclede-steel-jpg.31571/