The Adjacency of Strangers
Why a community that meets weekly to argue about graph traversal turned out to be the warmest professional network any of us had ever joined.
There is a peculiar joy in walking into a room where everyone is holding a coffee in one hand and a printed adjacency matrix in the other. At first the geometry of the gathering feels accidental — clusters of three, pairs near the window, a lone figure tracing a Hamiltonian path on the chalkboard. But spend an evening here and the pattern reveals itself: this is a graph too, and we are the nodes, and the edges are the questions we keep asking each other.
When we founded graphers.net in 2024, we made one rule that has held against every redesign and every flame war: every conversation must remain inviting to a beginner. The traversal is what matters, not the destination. Three years later that rule is the spine of the community, the thing that keeps the vertices linked when topics drift from spectral clustering to potluck logistics.
“The shortest path between two graph people is never very long. Usually it goes through someone's printer, a half-finished Sankey diagram, and an unreasonably good coffee.
— Devon Akoma, founding member
What follows in this issue: a profile of the Lagos chapter and their breakfast DAGs, a long correspondence with Lin Wei about teaching modularity to fifth graders, and a love letter, of sorts, to the humble edge list. Pull up a chair. The hall is open.
Subscribers will recognize the layout — wider margins, fewer interruptions, more room for the hand-drawn marginalia we keep getting in the mail. Print is temperamental, but a community is a kind of printing press too: you press people together gently, you give them space to bleed onto each other, and eventually you get something readable.