Be recognized for your Sunday Game Night participation

From: Nathan
To: Game Friends

Game Friends,

Scientists now believe that each Game Night email is unique, one of hundreds of millions of possible invitations. Yet paradoxically, each email is in many ways exactly the same as all the others: each and every one possesses a 5pm start time, reminders to bring snacks and RSVP, and perfect six-fold symmetry. In this way, the unusual and unpredictable crystallization of a Game Night email in the upper atmosphere is an excellent illustration of the concept of deterministic chaos.

Nathan

From: Trevor
To: Game Friends

A periodic coherent structure?

Please note a negative RSVP state for node TH for following five iterations.