Haven't seen that format before. Substack ordinarily scatters various buttons/images/signups etc through an article so I'm accustomed to skipping over them to g

Haven't seen that format before. Substack ordinarily scatters various buttons/images/signups etc through an article so I'm accustomed to skipping over them to get to the next paragraph. The subtitle of the article specifically mentions Educational Models, creating an expectation they will be covered as part of the subject matter. But then it's tacked on without any context or reason. Total non-sequitur.