A positive effect from on-the-surface-dangerous materials, is not unprecedented. The immune system has some mechanisms, that play off a little bit on this principle.
And as for "consensus", there is no consensus on the Earth being round (well, there probably is among scientists, if they value not being the most mocked scientist of modern times), despite how obvious it is that the Earth is round. I guess what I am saying is that the evidence itself is the most important, and the SIGMA level of certainty applied to it.
Though, I am surprised that we hardly seem to see that SIGMA level rating applied to many more scientific articles. I am just bringing that SIGMA thing up as a point of interest, because of the general discussion about evidence it self. I don't know much more about it beyond what I've mentioned here, but perhaps it is something we should be using more often when discussing all manner of scientific evidence.
