Propagation paths

Trace the multi-step routes something actually travels through the graph: who reaches whom in two or three hops, where a message, invitation, or mood stalls out, and which links every route depends on. Direct ties alone tell you nothing about reach.

Trace the multi-step routes something actually travels through the graph: who reaches whom in two or three hops, where a message, invitation, or mood stalls out, and which links every route depends on. Direct ties alone tell you nothing about reach.

Example

In the fraying friend group, follow a Saturday invitation. It used to cross in two hops through the woman who moved away, and 11 people showed. Now Marcus's plan reaches his five and stops; Dana's cluster never hears about it at all.