Shared fate instantly converts a random aggregate into a coordinated core group.

Evidence

The recurrence results from the persistent dynamic relations among bodily form, modal tasks, group size, and ecological constraints from one generation to the next. For example, a group of five strangers in an elevator is an aggregation of individuals. Should the elevator get stuck between floors, however, the group promptly becomes a core configuration (a result of their shared fate), distributing perception, memory, and problem-solving skills. — Roderick M. Kramer, Geoffrey J. Leonardelli, Robert W. Livingston, Social Cognition, Social Identity, and…, 402

Categorization

• XREF: Shared-fate group formation echoes minimal-group-paradigm findings and bears on when outgroup categorization activates — relevant to the Islamophobia mechanism thread.
• corroborated: 2 independent passages support this claim — Roderick M. Kramer, Geoffrey J. Leonardelli, Robert W. Livingston, Social Cognition, Social Identity, and…, 402