Copilot Summarizes just the page

I saw a headline Windows dashboard about a popular internet provider that filed for Chapter 11.  I was curious and decided to check it out and clicked the story.

The news item is from “TheStreet” and the initial page does not show the entire article, just the first part.  I think this is equivalent to “above the fold” in the newspaper vernacular.  I decided instead of scanning the text for the most recent Chapter 11 victim I would select the Copilot “Summarize” button nicely placed in my view, to the left of some adds monetizing the page.

I was surprised by the summary in that it mentions Wolfspeed (semiconductors) and Solid (fintech), neither of which would be classified as a popular internet provider.  

I then expanded the story and read further about Evergreen, which is a popular internet provider, filing for Chapter 11.  When I tell Copilot to Summarize again, after expanding to the full article, it does include Evergreen in the summary.

What happened?

I expected Copilot to summarize the entire article, not just the excerpt that was originally shown.  I think this is a logical expectation from a non-technical perspective – the button says summarize, but that is ambiguous and does not specify “Summarize only what you see right now as the article” versus “Summarize the entire article.”  I would guess from a technical perspective Copilot is summarizing what it has access to locally (i.e. in your local browser) and not making a second request to TheStreet for the entire article to then summarize.