And? How does this make their opinion more or less valid? This is a classic example of appeal to authority.

When the only argument is fallacious, you actually need to provide something non- fallacious or you are left with no argument and your premise fails, as is the case here. I find it condescending that your only reply was a link and no text. Peak intellectual laziness.

It's not an argument, and so it's not an appeal to authority, nor any other fallacious argument. It's just the blurb you see if you click on the author's byline at the head of the article.

I clicked on it, because I wanted to know who the author was.

Ah, so he's entirely unqualified to write on the topic, and also not in the list of the first 10,000 people this "elite group of billionaires" would reach out to to talk about their super secret prepper plans. 100% fake article.