[blix]

Make some car windows out of silica gel and let me know how it goes :) I think you will find nanometer-sized pores can actually matter a lot!

I'm not sure dismissing all research that disagrees with me as witch-burning would be a good habit as a scientist.

[kragen]

Nanometer-sized pores matter enormously, which is why we make silica gel in the first place, but not in ways that make other forms of amorphous silica more toxic than silica gel.

I'm not dismissing research that disagrees with me as witch-burning. I'm dismissing people who disagree with literally all the research.