Issue 042 · Spring Assembly

 

A conference hall for graph enthusiasts — where edge-cases become friendships, adjacency lists become guest lists, and every member is a node in something larger.

2,847 Members in the Hall
137 Open Discussions
19 Local Chapters

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.

The Membership · 2,847 nodes

Some of the people in the hall

Hover any hexagon to learn a name. The cluster breathes — adjacent hexes shift outward when one is touched, the way conversations bloom around a guest.

Project Spotlights

Pinned to the cork board this month

Visualization

Adjacency.fm

A weekly podcast where we read graph papers out loud and argue gently. Episode 41 just dropped: PageRank as a love language.

by Theo Holmberg & Ines Vasquez
Open Source

honeycomb-layout

A tiny TypeScript library for hexagonal grid arithmetic. Now with flat-top, pointy-top, and one experimental "drunken bee" tessellation.

maintained by the Berlin chapter
Field Work

The Subway Atlas

Twelve members rode every line in their city and hand-drew the multigraph. The result is a printable book — and it is gorgeous.

by the Atlas Working Group
Education

Modularity for Kids

Lin Wei's curriculum for teaching community detection to fifth graders using friendship bracelets. Approved by three actual fifth graders.

by Lin Wei & the Education circle