The Oddest of Connections in the Internet Age

The age of communication/information is solidly here. It is not just the internet age. No, this overwhelming flow of information and communication began hundreds of years ago in the printing shop of one Gutenberg. From this invention sprang the newspaper and the thought of Normandy and Norway could be considered in the monastery of Don Diego only a few weeks later. Of course this has exploded with the dawn of the internet but the concept has been brewing in the global cultural for generation upon generation. And each generation, each day can bring new revelations in medicine and culture for those who look. 
Somewhere in Scandinavia a young authoress/artist writes and draws the most wonderful story. She is an international success story. Like the author of "The Martian" she began posting her stories for fun and as her following grew they formed a fandom and then an international community. This community interaction leads to the most interesting discoveries. In the latest posted chapter of this story a worried older brother figure takes the time to check on the medical status of his sleeping "little brother" by rotating his face to make sure he is breathing properly. This led to this conversation. 
​ Two people, one twice as old as the other, living literally a world apart (the lower reply was from a reader in Scandinavia), both saw a gesture and identified it as the same thing, caused by a specific set of emotions and concerns. 
As an author this should send up flags of interest. A chord of familiarity that rings so true between two such different cultures is an  excellent place to find a universal story element. This is a point to be seized and expanded upon.