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From a chemical bond point of view, sure, but they are also known to be teratogenic (birth defects) and carcinogenic (cancer).

Chemically unreactive doesn’t mean biologically non-interacting.

That's what I thought too reading this. What are the problems associated with PFAS?

I'm curious how you came to this conclusion - what publication did you read this in?

And, if you please, why do you feel confident enough to imply these chemicals are safe? Are you an expert in biological processes?

Thats common chemical knowledge. Don't be that guy.

Still, as other pointed out, he missed the point by a mile.

Here's the thing: there's a big gap between some scientific terms and terms as normal, ie, most people understand them. In this case, the word is 'inert'.

I don't think it's at all unreasonable to want to know who is telling people PFAS are inert, with the implication being 'safe'. Nothing 'that guy' about it.