So he typically advertises for VPNs? I don’t understand.
He “typically” discusses interesting places/people. In the first 5 or so seconds of the video he discusses a fictitious person and how they “weren’t protected from viruses, but you could be with a VPN”. So he transitions from his typical video style to a VPN ad to then highlight all of the things wrong with VPN ads.
The opening scene is a parody of his typical videos (which are typically about places/people) transitioning into a VPN ad segment. The fact that it isn’t about a real person means that it is not in fact from one of his real videos. If you watch the opening scene and read the pinned comment on the video my reply might make more sense.
This is inaccurate, read the pinned comment on the video where he points out that the opening scene is entirely made up and isn’t about a real person.
Doesn’t the fluorine make them both effective and forever? Isn’t it difficult to create a lower energy state molecule than a compound of fluorine.
For many applications, yes. Fluorinated compounds tend to be quite inert. There are definitely some applications where the compounds don’t need to be resistant to every type of chemical attack and you could use a more specialized compound that is generally less inert but performs similarly in whatever conditions you put it under.
Is “forever” the problem?
Forever is a big part of the problem, but it’s worth noting that if a compound is completely nontoxic then bioaccumulation doesn’t matter as much (though some nontoxic chemicals can increase the potency of other, toxic chemicals and cause problems that way: see this article)
The points you have brought up seem to be an issue with responsibile manufacturing more than the nature of the chemicals themselves. Seems like that should be addressed on a much wider discussion than just these particular compounds.
Yes. We need increased strictness on regulations and enforcement for these compounds and others because that’s the only way to make companies comply.
PFAS are used in so many forms (solvents, polymers, etc.) that I think the replacement will be very dependent on the specific use case (and potentially other regulations on alternatives, particularly for solvents). I’m not knowledgeable about every field these compounds are used in and for privacy/NDA purposes I can’t talk about the specifics of the ones I worked with.
Remember your high school chemistry class
Yes I do. I also remember my college chemistry classes. And my work in an industry R&D lab evaluating potential replacements for a fluorinated compound.
What do you think they are going to use instead of fluorine?
Something that’s not as good, but good enough. See leaded vs unleaded gasoline for a historical example of industry reacting to regulation. It’ll of course take time and money, and there may be limited use cases where there aren’t any conceivable replacements, but in a lot of cases these compounds are used as a catch-all because they work so well.
Yet I guarantee you that in their R&D labs they’re already looking for alternatives at this point, all the while claiming to the public that it will be impossible to replace or result in inferior products (maybe it will, but hopefully it won’t be super noticeable - leaded gasoline’s octane numbers haven’t been matched cheaply but we can still drive just fine).
Yes but only for a couple of months, averaged over the whole year it’s significantly lower than that. Probably still on track to hit the annual average of 1.5 sometime in the next 10-20 years. Still definitely a dire situation but not entirely out of left field based on the recent estimates.
The recent records have now lifted the year-to-date global temperature to the end of August to 1.35C above pre-industrial levels, just 0.01C behind 2016 — the current record holder
Yes, they will and they did