“Weak ties feel too different or, in some cases, literally too far away to be close friends. But that’s the point. Because they’re not just figures in an already ingrown cluster, weak ties give us access to something fresh. They know things and people that we don’t know. Information and opportunity spread farther and faster through weak ties than through close friends because weak ties have fewer overlapping contacts. Weak ties are like bridges you cannot see all the way across, so there is no telling where they might lead.”