Bruhn posits that social relationships have fundamentally changed and that weak ties are becoming
increasingly prevalent under conditions that frustrate the maintenance of strong and tenable social
relationships. Deriving many hypotheses from the work of Robert Putnam, Bruhn argues that not
only are weak ties becoming more salient, but also there is increased turnover in weak ties that result
in fleeting and fragmented relationships. Fleeting and fragmented relationships are thought to
restrain one’s social investment in community, thereby limiting the social capital available to all
group members. Under these conditions it is expected that generalized trust in social institutions and
fellow citizens may wane, thereby further threatening community.