Can AI solve the loneliness epidemic? Here's what Aristotle would say

Fast Company

30-05-2025

Mark Zuckerberg recently suggested that AI chatbots could combat social isolation by serving as 'friends' for people experiencing loneliness.
He cited statistics that the average American has fewer than 3 friends but yearns for as many as 15. He was close: According to a 2021 report from the Survey Center on American Life, about half of Americans have fewer than four close friends.
Zuckerberg then posited that AI could help bridge this gap by providing constant, personalized interactions.
'I would guess that over time we will find the vocabulary as a society to be able to articulate why that is valuable,' he added.
Loneliness and social disconnection are serious problems. But can AI really be a solution? Might relying on AI for emotional support create a false sense of connection and possibly exacerbate feelings of isolation? And while AI can simulate certain aspects of companionship, doesn't it lack the depth, empathy, and mutual understanding inherent to human friendship?
Researchers have started exploring these questions. But as a moral philosopher, I think it's worth turning to a different source: the ancient Greek philosopher Aristotle.
Though it might seem odd to consult someone who lived over 2,000 years ago on questions of modern technology, Aristotle offers enduring insights about friendships—and which ones are particularly valuable.
More important than spouses, kids, or money
In his philosophical text Nicomachean Ethics, Aristotle maintained that true friendship is essential for eudaimonia, a Greek word that is typically translated as 'flourishing' or 'well-being.'
For Aristotle, friends are not just nice to have—they're a central component of ethical living and essential for human happiness and fulfillment.
'Without friends, no one would choose to live,' he writes, 'though he had all other goods.'
A solitary existence, even one of contemplation and intellectual achievement, is less complete than a life with friends. Friendship contributes to happiness by providing emotional support and solidarity. It is through friendship that individuals can cultivate their virtues, feel a sense of security and share their accomplishments.
Empirical evidence seems to support the connection between friendship and eudaimonia. A 2023 Pew Center research report found that 61% of adults in the U.S. say having close friends is essential to living a fulfilling life—a higher proportion than those who cited marriage, children or money. A British study of 6,500 adults found that those who had regular interactions with a wide circle of friends were more likely to have better mental health and be happier.
And a meta-analysis of nearly 150 studies found that a lack of close friends can increase the risk of death as much as smoking, drinking, or obesity.
Different friends for different needs
But the benefit of friendship that Aristotle focuses on the most is the role that it plays in the development of virtue.
In Nicomachean Ethics, Aristotle identifies three tiers of friendship.
The first tier is what he calls 'friendships of utility,' or a friendship that is based on mutual benefit. Each party is primarily concerned with what they can gain from the other. These might be colleagues at work or neighbors who look after each other's pets when one of them is on vacation. The problem with these friendships is that they are often fleeting and dissolve once one person stops benefiting from the relationship.
The second is 'friendships of pleasure,' which are friendships based on shared interests. These friendships can also be transient, depending on how long the shared interests last. Passionate love affairs, people belonging to the same book club, and fishing buddies all fall into this category. This type of friendship is important, since you tend to enjoy your passions more when you can share them with another person. But this is still not the highest form of friendship.
According to Aristotle, the third and strongest form of friendship is a 'virtuous friendship.' This is based on mutual respect for each other's virtues and character.
Two people with this form of friendship value each other for who they truly are and share a deep commitment to the well-being and moral development of one another. These friendships are stable and enduring. In a virtuous friendship, each individual helps the other become better versions of themselves through encouragement, moral guidance, and support.
As Aristotle writes: 'Perfect friendship is the friendship of men who are good and alike in virtue. . . . Now those who wish well to their friends for their sake are most truly friends; for they do this by reason of their own nature and not incidentally; therefore their friendship lasts as long as they are good—and goodness is an enduring thing.'
In other words, friendships rooted in virtue not only bring happiness and fulfillment but also facilitate personal growth and moral development. And it happens naturally within the context of the relationship.
According to Aristotle, a virtuous friend provides a mirror in which one can reflect upon their own actions, thoughts, and decisions. When one friend demonstrates honesty, generosity, or compassion, the other can learn from these actions and be inspired to cultivate these virtues in themselves.
No nourishment for the soul
So, what does this mean for AI friends?
By Aristotle's standards, AI chatbots—however sophisticated—cannot be true friends.
They may be able to provide information that helps you at work, or engage in lighthearted conversation about your various interests. But they fundamentally lack qualities that define a virtuous friendship.
AI is incapable of mutual concern or genuine reciprocity. While it can be programmed to simulate empathy or encouragement, it does not truly care about the individual—nor does it ask anything of its human users.
Moreover, AI cannot engage in the shared pursuit of the good life. Aristotle's notion of friendship involves a shared journey on the path to eudaimonia, during which each person helps another live wisely and well. This requires the kind of moral development that only human beings, who face real ethical challenges and make real decisions, can undergo.
I think it is best to think of AI as a tool. Just like having a good shovel or rake can improve your quality of life, having the rake and the shovel do not mean you no longer need any friends—nor do they replace the friends whose shovels and rakes you used to borrow.
While AI may offer companionship in a limited and functional sense, it cannot meet the Aristotelian criteria for virtuous friendship. It may fill a temporary social void, but it cannot nourish the soul.
If anything, the rise of AI companions should serve as a reminder of the urgent need to foster real friendships in an increasingly disconnected world.