I started reading this comment about your doubts with interest, thinking it would eventually lead to some concrete reasons that you doubt the evidence on PFOA/P

I started reading this comment about your doubts with interest, thinking it would eventually lead to some concrete reasons that you doubt the evidence on PFOA/PFOS. But it turned out to be an opinion piece on why you reflexively disbelieve news about chemical contamination of the environment. Whatever you might say about the article at the top of this post, it’s written by someone who has done research and has concrete arguments. Why not hold your own beliefs and commentary to at least that standard?