Bonding and Bridging Capital

Bonding social capital connects people who are already similar — the tight-knit engineering team, the ethnic enclave, the professional guild. It provides emotional support, mutual aid, identity, and the thick trust that comes from shared background. Bridging social capital connects people across lines of difference — different departments, different disciplines, different backgrounds. It provides access to new information, opportunities, and perspectives that bonding networks cannot supply. Mark Granovetter's "strength of weak ties" is fundamentally a thesis about bridging capital: the acquaintance who tells you about a job, the colleague from another field whose offhand remark solves your problem. Healthy communities require both forms in balance. Too much bonding without bridging produces insularity and groupthink. Too much bridging without bonding produces shallow networks incapable of sustaining commitment. AI-augmented individual work threatens both forms, but through different mechanisms and with different consequences.