Begins by comparing Toyota’s suppliers’ response to a potentially disruptive fire at a plant used to manufacture an important component for cars with a potential security breach in the Linux kernel, patched by Rusty Russell and Andrew Tridgell. Large communities mobilising and organising themselves to respond to an emergency.

What makes these communities work?

• A common work discipline. Similar skills and a common language
• Widespread, granular communication
• Leaders are connectors