It's evening. Kumiko, a young Japanese graphic designer, goes down into the busy metropolitan of Tokyo. While waiting for the Mita line, she browses to one of her favorite websites. The train arrives, Kumiko goes in and in a few seconds arrives in a low network area. Kumiko has no connection, she has to wait for the train to arrive in a good network area to resume browsing. This is, unfortunately, a familiar scene for everyone, whether you are in Tokyo, Milan or New York. We have all faced this problem. And service workers exists to solve this problem.
(https://www.hacklabo.com/your-first-service-worker/)
Why the fuck has the author just told me about some fictional character, supplying it with sex, age, nationality, profession, and precise location. Why did she feel the urge to create this doll (which she discards by the end of the paragraph and never picks up again) to start talking about technology? I mean, if she wanted the reader to feel the problem personally, why not invite him to imagine getting on a train that goes into a tunnel, or stepping into an elevator, or something like that?