Not completely, but far more than the skeptical framing suggests. You can never occupy another's experience from the inside, and some opacity is permanent—people change, conceal, and do not fully know themselves—but "knowing a person" is not all-or-nothing, and through sustained attention you can know someone's patterns, values, and inner life well enough that the word "know" is genuinely earned.
The permanent limits are real and worth stating.
There is an experiential barrier: you cannot feel another's pain or see their private qualia; their consciousness is inaccessible in principle.
There is a dynamic barrier: a person is not a fixed object but a changing process, so any knowledge of them is of a moving target.
There is a concealment barrier: people curate what they show and hide much.
And there is a self-opacity barrier: they often do not know their own motives, so even perfect honesty would not deliver a complete self.
But these limit completeness, not adequacy.
We do not demand experiential identity to say we "know" anything else—we know a city, a language, a field without being it—and the same graded sense applies to persons.
Through long attention and shared history you can come to predict someone reliably, grasp their values and fears, recognize their inner states from small signs, and be trusted with what they conceal from others.
That is a substantial, hard-won knowledge, categorically different from acquaintance.
The load-bearing point is that the opacity is not only a limit but part of what sustains relationship:
a person fully known would be exhausted of interest, and the residual mystery is what keeps long love attentive rather than complacent.
So the honest stance is neither "you can never really know anyone," which is false and corrosive, nor a claim to total transparency, which is arrogant—aim for the deep, partial, continually updated knowing that real attention makes possible, and hold the remainder as mystery rather than failure. This would need revision only if minds were transparent to each other, which they are not.
Not completely—but a lot more than the gloomy "you can never really know anyone" line suggests. You can never feel another person's experience from the inside, and some of their opacity is permanent. But knowing a person isn't all-or-nothing, and with sustained attention you can genuinely know someone's patterns, values, and inner life well enough that "know" is fully earned.
The permanent limits are real:
But notice: those limit completeness, not adequacy. We don't demand to be a city or a language to say we know it—and the same graded sense applies to people. Through long attention and shared history, you can predict someone reliably, read their moods from tiny signs, grasp what they fear and value, and be trusted with what they hide from everyone else. That's real, hard-won knowledge, and it's a different thing entirely from acquaintance.
There's even a gift in the leftover mystery: a person fully known would be exhausting, and the bit that stays unknown is part of what keeps long love attentive instead of complacent.
So skip both errors—the corrosive "you can't know anyone" and the arrogant "I know you completely." Aim for the deep, partial, constantly-updated knowing that real attention makes possible, and treat the remainder not as a failure but as the mystery that keeps you curious.
The Locked Room.
At the center of every person is a room no one else can enter. You can stand at the window, read the expressions, hear the words, watch a lifetime of behavior—but you can never once step inside and feel, from within, what it is like to be them. Their pain arrives to you only as report and inference; their private colors, their inner weather, the exact texture of their joy are sealed behind the one door consciousness cannot open onto another consciousness. This is not a failure of intimacy but a fact of minds: each of us is, at the deepest level, the sole occupant of our own experience. Every act of knowing another is done from outside a room we can describe in exquisite detail and never, ever enter.
The Person Who Is Already Someone Else.
And even the outside keeps changing. You come to know someone—their moods, their tells, their history—and meanwhile they are quietly becoming a different person, shaped by experiences you weren't part of, revising their own opinions, growing in directions you did not predict. To know a person is to know a river, not a rock: whatever you learned is already slightly out of date, a snapshot of a self that has moved on. This is why long marriages sometimes contain the vertigo of waking beside a stranger, and why the work of knowing someone is never finished but perpetually renewed. You do not learn a person once. You re-learn them continuously, or you end up loving a photograph of who they used to be.
Behind the Mask.
We move through the world in costume—Goffman showed how relentlessly we manage the self we present, performing versions of ourselves calibrated to each audience. Most people see only these performances, and mistake the mask for the face. But here is the intimate exception: to truly know someone is to be let backstage, past the presentation, into the messy dressing room where the performer is off duty. Being known is precisely this permission—the dropping of the mask for one particular person, the showing of what is hidden from everyone else. So while concealment limits how much strangers can know, it also defines what intimacy is: not the absence of a mask, but the trust that removes it for you alone.
The Stranger in the Mirror.
But the deepest obstacle is stranger still: the person you are trying to know does not fully know themselves. The self is opaque to itself—motives hidden from their owner, patterns invisible from the inside, whole rooms of the psyche that consciousness has never toured. This has a startling consequence: sometimes another person can see you more truly than you see yourself, catching the pattern you're blind to, naming the feeling you couldn't. To be well known by someone is therefore a form of self-knowledge; they hold up a mirror angled to show you what you cannot show yourself. We are, each of us, partly unknown to ourselves and occasionally better known by another—which scrambles the whole premise that knowing has to move from inside outward.
The Trying Is the Intimacy.
So can you truly know another person? Not completely, and never finally—but the impossibility of total knowledge is not the tragedy it first appears. Consider that to be completely known might be unbearable, and to completely know another might exhaust all wonder; the residual mystery is part of what keeps love awake, forever leaning toward a horizon it never reaches. We are creatures who most want the thing we most fear: to be seen all the way down, and to survive the seeing. Intimacy is not the achievement of perfect knowledge but the lifelong act of reaching for it—the attention paid, the mask lowered, the re-learning renewed, the willingness to keep approaching a person who can never be fully arrived at. You cannot finish knowing someone. But you can spend a life trying, and that trying, imperfect and unfinished and faithful, may be exactly what love is. We do not know each other completely. We know each other enough to stay—and to keep looking.
You cannot know another person completely: their experience is sealed off in principle, they change continually, they conceal, and they do not fully know themselves—so some opacity is permanent. But knowing a person is not all-or-nothing, and through sustained attention and shared history you can come to grasp someone's patterns, values, and inner life, read their states from small signs, and be trusted with what they hide from others—a deep, hard-won, continually updated knowing that fully earns the word. The remaining mystery is not only a limit but part of what keeps long love attentive rather than complacent. So the honest aim is neither the corrosive claim that you can never know anyone nor the arrogance of total transparency, but the partial, faithful knowing that real attention makes possible.