Clusters

Look for pockets where nearly everyone connects to everyone else, then note how few ties run between pockets. Where the dense pockets sit tells you where information circulates fast, where it stalls, and which subgroup a change will actually reach.

Look for pockets where nearly everyone connects to everyone else, then note how few ties run between pockets. Where the dense pockets sit tells you where information circulates fast, where it stalls, and which subgroup a change will actually reach.

Example

In the friend-group sketch, you circle two dense pockets: five people from the old climbing gym who all text each other, and four from Dana's book club. Only two ties ever crossed between them, both running through the friend who moved.