Well, it’s a deep part of being human. Fundamental psychology shows us that we thrive and grow in groups—not just survive. From the earliest tribes to modern online communities, belonging is how we make sense of the world and ourselves. Sharing online isn’t just about posting; it’s about connecting to something larger. When we contribute our stories, ideas, or even struggles, we tap into a basic human need: to be seen, heard, and validated. Groups give us mirrors to reflect our experiences back to us, and windows to see beyond our own perspectives. Psychologically, this matters because growth happens in the space between people. We learn from others’ wisdom, gain courage from their support, and find motivation in shared goals. Even the act of sharing—whether it’s a small win or a hard lesson—reinforces our sense of purpose. It reminds us that our individual journeys are part of a collective story. And in a world that can feel isolating, online groups offer a bridge. They let us find our people, no matter how niche our interests or challenges. That’s not just comforting—it’s how we evolve.