Most people assume that wanting fewer, deeper friendships leads to better social outcomes — more meaningful connection, more support, more satisfaction. The alternative, the social butterfly model, gets treated as shallow: a lot of acquaintances, not much depth, a kind of emotional substitution that doesn't really count.
New research, published this week in The Conversation by researchers at Boise State University and the University of Arizona, found that this assumption is wrong — and the reality is both more complicated and more useful.
What the Study Actually Asked
Researchers Jessica D. Ayers and Diego Guevara Beltran ran five studies with more than 5,000 international participants, asking people directly about their friendship preferences: did they prioritize having a wide network of casual connections, emotional intimacy with a smaller number of friends, or some combination of both?
They then compared those preferences to actual outcomes: how many friends people had, whether they felt lonely or excluded, how satisfied they were with their friendships, and how willing they were to pursue new connections.
The results upended a widely held assumption.
The Counterintuitive Finding
People who preferred wide networks of casual friendships reported being more extroverted, having more friends overall, and — critically — having more people they could call on for practical help. The conventional model of the shallow social butterfly, spread too thin for real connection, didn't match the data.
People who most strongly prioritized emotional intimacy with their friends reported having fewer people willing to help them, greater concern about exclusion, and less satisfaction with their friendships. They were also more motivated to make new friends — willing to share personal information with potential connections more readily — which suggests that their high standards for depth weren't being met by their current social reality.
"One of the most interesting things we saw was that people didn't seem to make a simple quantity-versus-quality choice," the researchers write. The preferences for breadth and depth turned out to be more independent than previously assumed — you can want both without necessarily pitting them against each other.
Whether you can actually achieve both — many friends AND deep intimacy with all of them — is a different question the research leaves open.
Why Close-Friendship Seekers Often End Up Lonelier
The mechanism the researchers identify is intuitive once stated: people who set high standards for emotional intimacy in friendships are setting a bar that most casual encounters won't clear. The result is a social environment that feels thin, even when there are plenty of people around. The close-friendship seeker isn't getting what they came for from any single relationship, and may be filtering out connections — the casual lunch, the work friendship, the neighbor relationship — that could have accumulated into something meaningful.
Research on loneliness consistently shows that weak ties — the casual, low-stakes connections that don't feel like "real" friendship — provide more social benefit than most people expect. The neighbor you wave to. The barista who remembers your order. The coworker who makes you laugh at 10am. None of these feel like friendship in the deep sense. Collectively, they provide something that turns out to matter.
The 300-Hour Framework — and What It Changes
One of the most useful data points to emerge from friendship research in the past decade is a straightforward time estimate: it takes approximately 30 hours of interaction to form a casual friendship, 140 hours to develop a genuine friend, and 300 hours to build a best friendship.
These aren't arbitrary numbers — they reflect how much shared experience, vulnerability, and history are required to build the kind of trust that deep friendship involves. For most adults in the 35-55 age range, finding 300 hours to invest in a new close friendship is genuinely difficult alongside work, family, and existing commitments. The math alone explains why close friendships are harder to build as an adult.
What the new research adds to this picture: the people who accept and cultivate friendships at multiple levels — casual, good, and close — end up with stronger support networks than those who hold out for depth alone. The 300-hour friendship is worth pursuing. But not at the expense of the 30-hour one.
