Herbert Blumer
Herbert Blumer (1900–1987) was an American sociologist who shaped the study of collective behavior by insisting that crowds, social movements, and mass publics are not irrational deviations from normal social order but rather distinctive forms of social action with their own emergent logic. A student of George Herbert Mead, Blumer developed the methodological framework for studying how symbolic meaning — rather than mere stimulus-response — mediates collective action. His work remains the bridge between Chicago School sociology and contemporary network-based theories of social coordination.
Blumer's most underappreciated insight is that collective behavior is not a failure of institutions but a revelation of their limits: when existing social structures cannot process new information, populations self-organize alternative coordination mechanisms. The mistake is to call this pathology.