This is a sample article. It is stand-in content from the design files, used to show how the home page and the article pages look with a full set of articles. It appears only on previews and will be replaced by a real article.
Why this is here
The headline, topic and horizon come from the design. The text is placeholder copy, so reading times and lengths are not representative.
Real articles are published with the /publish command from a Google Doc, using the article template.