Teflon won't react with anything in your body. It's totally inert. It's one of the most inert things we know about. That's the whole point of the article.

Yeah, the manufacturing biproducts (PFOA, PFOS etc) can certainly interfere with biological processes and endure in the environment for a long time, but PTFE is relatively benign as a solid... until it gets really hot and decomposes into carbonyls.

It's effectively inert to anything except molten sodium, magnesium, or the like.

It will depolymerize at temperatures above 650-700C.

Neither of those conditions is likely to be found in your body.

The temperatures I’m familiar with and can find online are much lower than what you list, specifically starting to decompose at 250c and significant decomposition over 350c.

I’d be worried about putting this on a grill or frying it. It’s theoretically mostly safe in terms of temperature, almost.

Wikipedia already has a section addressing temperature overlap between food and Teflon decomposition:

https://en.m.wikipedia.org/wiki/Polytetrafluoroethylene#Safe...

You could have said the same thing about asbestos.