It's interesting and sometimes useful perspective to look at the history of an idea. The one about nanothermite being used on 9/11 reminding me of the one about aluminum being in contrails. That became an easy exercise in "finding" evidence to prove your theory, because aluminum is everywhere. Evidence for nanothermite is harder to come by, but it still seems like evidence being collected to fit a theory, rather than a theory being formulated to best explain the evidence. So where did the nanothermite theory come from? Who thought it up, and what were they basing it on? What gap in their explanation did it need to fill It seems that just simple thermite came before nano, here's a Jun 20th 2004 post by a D. P. Grimmer: http://physics911.net/thermite/ Who are these other researchers? Grimmer gives some details: Hoffman was someone I'd suspected as being the source. But apparently not. Michael Rivero runs a generalized evil-jewish-bankers-illuminati type site: http://www.whatreallyhappened.com/ Rivero brings up thermite in 1996 as a possible mechanism of sabotage of the plane of Ron Brown in Croatia. http://www.whatreallyhappened.com/RANCHO/CRASH/BROWN/brown.php It was mentioned in passing in a 2002 article on WTC1, but seemingly just a temperature reference, no suggestion of it being used for demolition. The root article seems to be this one: http://www.whatreallyhappened.com/WRHARTICLES/thermite.php Unfortunately the articles on the site don't seem to be dated. So it's hard to tell what was written when. They also seem to be updated over time. That one references a 2009 article. Perhaps then this was written after. Anyone have an recollection where this thing started?