Comment on K4 by CrayCray

After reading the 2020 interview where Jim Sanborn handed us another clue northeast. Along with Berlin Clocks – It became clear that one could easily be lead to jump to conclusions. He made one thing very clear that was not a very math savvy. That got me thinking..
Everyone jumped on Berlin Clock yet side stepped the World Clock (Alexanderplatz) in Mitte, Berlin.
As we know Jim loves his ciphers… and I believe this one is about graph theory. We were lead to it by berlin clocks northeast.
Why? Alexanderplatz is an Icositetragon it is situated in the north east of Berlin. Why is this significant well so happens in the mathematical field of graph theory, the Schläfli graph, named after Ludwig Schläfli, is a 16-regular undirected graph with 27 vertices and 216 edges. It is a strongly regular graph with parameters .
Now how it relates to K4 I am still trying to work out. I have no clue how graph theory is applied. Maybe someone with that knowledge can shed a light. In the meantime I am going to try to see how it all works..