Introduction — The Restless Arrow
Why Morality Was Never a Destination
Two minds about right and wrong
We condemn, with comfortable certainty, things our great-grandparents found unremarkable, and we assume with the same ease that our great-grandchildren will condemn us. Both convictions are sincere. Held together, they come close to contradicting each other, and that is where our moral lives get interesting.
The first conviction says that morality has improved. We look back at slavery, at torture staged as public entertainment, at wives owned as property and unwanted infants left outdoors to die, and we judge — not merely dislike, but judge — that these were wrong, and that coming to see their wrongness was a real advance. The second conviction says that our own certainties are no safer than anyone else’s: we too stand inside a moment that will look quaint or monstrous from far enough away. Many thoughtful people hold both and switch between them without noticing. In a broad-minded mood we say morality is relative to time and place; outraged, we say cruelty is simply wrong, wherever and whenever it occurs.
The two cannot both stand without some hard thinking. If morality only changes — a fashion in conduct, no better founded in one era than in another — then moral outrage is a confusion, like indignation that other people prefer a different color. But if morality improves, it seems it must improve toward something, and naming that something is the oldest trap in the subject. Name a fixed standard, and you have to say where it came from, and why anyone who lived before it, or far from it, was bound by it. Refuse to name one, and nothing is left from which to call anything wrong at all.
There is a third possibility, and it is what this book is about. It is not a halfway house — morality as sort of relative and sort of absolute — but a different reading of what the question was asking. The trouble, I will argue, is not that we have failed to find morality’s true target. It is the assumption that morality has a target, a place to be reached, rather than a direction.
The difference between a place and a direction matters for everything that follows. A place is somewhere you can arrive and be done. A direction can be followed from anywhere, indefinitely, without arriving, and it still tells you at each step whether you are moving the right way. Outward is such a direction. There is no place called Outward and no end to it, yet wherever you stand you can tell whether your last step took you further out or drew you back in. My claim is that growing more moral is a direction of this kind, far more like heading outward than like reaching a city you could settle in, and that nearly every difficulty in moral philosophy comes from searching for a destination when what we needed was a compass.
The trouble with maps that don’t move
For most of recorded history, serious thinking about right and wrong has run in three main channels, each a sincere answer to one question: what makes an act good?
One answer points to consequences: an act is good if it brings about good outcomes — more flourishing, less suffering. A second points to rules: an act is good if it honors a duty that holds regardless of outcome — keep your promises, do not treat a person as a mere tool. A third points to character: an act is good if it is what a generous, courageous, honest person would do. Each tradition is the distillate of centuries of careful argument, and each has hold of something real. I have no wish to knock them down; much of what follows stands on their shoulders. But lean any one of them hard against a difficult case and watch what gives.
Picture an act of cruelty carried out with perfect efficiency — every step well chosen, in the service of an end almost anyone would call monstrous. The consequentialist reaches for a tally and finds that “good outcomes” depends on whose outcomes are counted, over what stretch of time, and that the full consequences of anything are mostly hidden in advance. The other two stumble on an ordinary hard case; no monster is needed. The rule-follower finds that every rule, however wise, eventually meets the situation that makes it absurd, and that a clever enough mind can find a loophole in any rule. The character theorist asks what a virtuous person would do, and finds that real virtuous people disagree, that courage can pull against prudence and mercy against justice, with no virtue available to settle between them.
It is tempting to treat these as three separate breakdowns. I think they are one breakdown in three forms. Each tradition anchors morality to something that holds still — a fixed measure of good outcomes, a fixed rule, a fixed ideal of character — and then applies it to a world that will not hold still for anyone. Circumstances shift. Knowledge grows. The scale of our actions swells until a choice that was harmless among a hundred people becomes catastrophic among a billion. New kinds of agents appear that no rule anticipated. A fixed anchor in a moving world does not steady the ship; it drags it. Within any one context held still, each tradition says something sound about what is right there; the trouble starts when that frame is taken for the whole. The famous paradoxes of ethics, the ones that fill seminar rooms, come from there.
There is a further reason no fixed answer can be the final one, a short regress that will matter later. Suppose someone hands you the true and final standard of the good. You are entitled to ask of it the question it was invented to answer: and is that standard itself good? If the reply is “yes, because it leads to such-and-such further good,” then the standard was not final after all; the further good was, and you can ask the question again of that. Any standard we could write down today would be a snapshot of our present understanding, cut off from whatever we will come to understand tomorrow, so it would always be possible, and reasonable, to stand a little further out and ask whether the snapshot had it right. A target you can always sensibly aim past is not really a target. This regress is fatal to the search for a final destination. It is harmless — even friendly — to the search for a direction.
From a place to a direction
So let us change the question. Instead of asking what is the Good, as if it were an object to be located, pinned and measured against, ask what moral improvement looks like while it is happening.
This is not a dodge; it is the move that rescued the study of life. For a long time people asked what the essence of a living thing was and got nowhere, because they were hunting for a substance — a spark, a vital fluid, some stuff that living matter had and dead matter lacked. The breakthrough came from asking instead what life does: how it keeps itself going, adapts, reproduces, repairs, evolves. Life turned out to be far better understood as a process than as a possession. Morality, I want to suggest, is the same kind of case: not a substance to be located but a process to be recognized — the process by which agents of any kind learn to live among others in a world they only partly understand.
Here, then, is the proposal, in a single sentence you are welcome to distrust for now and asked only to remember:
Agents assess an act as more moral the more they perceive it as promoting values coherent over a wider context, by methods coherent over a wider scope.
Every heavy word in that sentence — values, coherent, context, methods, scope — I will unpack across the rest of the book, slowly, with help from evolution, from the study of minds, and from a fair amount of plain looking. For now I want only the shape of the thing to be visible. Growing more moral, on this view, is not arriving anywhere. It is an agent making what it cares about more consistent and better understood, and the ways it pursues those things more capable and farther-reaching; and — the part everything else turns on — doing both over a widening context rather than a narrowing one. The same holds for a family, a community or a culture acting together as for a single person. All along, what reaches the agent — from its own acts and from everything else it meets — corrects both, and it goes again.
Notice what this restores, the thing the fixed-standard view kept losing: the ability to be wrong and to find out. If morality had a final destination, being wrong would mean missing it, and since no one can see that destination, no one could ever tell whether they had missed it. But you do not need to see a destination to know you have wandered off course; you need a compass and the willingness to consult it. The compass here is what reaches us as we go: the consequences we did not intend, the perspectives we left out, the contradictions in our own values that surface only under pressure. We are not measuring ourselves against a destination we cannot see. We are checking, step by step, whether we are still heading outward.
If that sounds as though it gives away too much — as though, by giving up the fixed target, we have given up the right to call anything wrong — then you have arrived where you should, holding the objection the next section answers.
Why this is not “anything goes”
The worry is natural and serious. If there is no final standard, only a direction, isn’t each of us free to point our own arrow wherever we like? Isn’t this just relativism stated more confidently?
No, and the reason comes in two parts. Each gets a full chapter later, so here I will only show their shape.
The first part is that we do not start out pointed in random directions. It is tempting to imagine that without a fixed standard every agent’s values fly off independently, so that no two could ever meet. That has never been our situation. We are the products of a long shared history, evolutionary and developmental, and we arrive already caring about many of the same things: creatures built like us, raised among others like us, reliably come to care about safety and belonging, about fairness and kindness, about the people near them. Picture a tree. The disagreeing parties are leaves at the tips of the outermost branches, each reaching into its own corner of the possible; out there, at the tips, we differ, sometimes violently. But trace any two leaves back toward the trunk and the branches that carry them join — sooner than you would guess — at some thicker limb they share. The deeper you go toward the root, toward the plain facts of being a vulnerable, social, finite creature in a physical world, the more we turn out to have in common. The shared root does not by itself guarantee agreement: two starving animals with the whole inheritance in common will still fight over one carcass. What turns it toward agreement is that, as agents take in more of their situation, working together tends to yield what fighting forgoes. Agreement, on this picture, is not a miracle pulled from nowhere. It is the patient work of tracing back to a branch that already holds us both. We do not have to invent common ground; we build on the ground we already share.
The second part is sharper, and it is what keeps this framework from collapsing into “anything goes.” A direction has a forward and a backward. On this proposal, growing more moral is growing more coherent over a widening context. Its mirror image, the signature of its opposite, is growing coherence over a narrowing one. We tend to admire coherence; a worldview without contradictions feels like an achievement. But notice how the most airtight worldviews get that way. A cult reaches its eerie internal consistency by sealing itself off — treating every inconvenient fact as an attack and every outside voice as an enemy, until nothing is left that could contradict the doctrine. An echo chamber, a conspiracy theory, a hardening ideology: each grows more coherent by caring about less, refusing what has already reached it until its picture can no longer be disturbed. That is coherence by amputation. It is the arrow running in reverse, and the more perfect the consistency, the more complete the reversal.
So this is not permissiveness. Without any fixed creed, an agent can still find the line between better and worse — in the shape of the process rather than in its content. Is my concern widening or narrowing? Is this coherence kept by refusing to look at something that has already reached me? A morality with no fixed bedrock still lets an agent tell a saint from a fanatic, and this is how.
That is also why the view is not a relativism. Relativism says nothing reaches across perspectives; absolutism says one fixed standard does, the same for everyone, readable from no particular vantage at all. This book lives between them, and is at home there. Something does reach across perspectives — the direction — because we share a world and an inheritance. But it is not a fixed truth handed down from nowhere; it is a heading each of us can find from where we happen to stand, and travel by together, never a place at which anyone arrives. Something beyond our views corrects them, and our views are always somebody’s views. Both halves of that sentence matter, and most of the trouble in ethics has come from keeping one and dropping the other.
What you get for the trade
What is all this reframing for? Why give up the familiar furniture of fixed rules and final goods for a stranger arrangement?
Two reasons, and I will name them plainly so you can hold me to them.
The first is honesty about starting points. The older frameworks rest finally on claims that are very hard to defend and impossible to check: that there exists, somewhere, an objective Good, or a set of duties woven into the fabric of things, or a fixed roster of virtues valid for all people at all times. You either accept these premises or you don’t, and reasonable people have talked past one another about them for millennia. The view in this book asks you to accept far less. It grounds morality in processes you can watch: agents learning, adapting, refining what they value, finding and losing common ground. You can see them, with no metaphysical leap, in a child working out fairness on a playground, in a profession revising its ethics after a scandal, in a civilization slowly enlarging the set of beings it is ashamed to mistreat.
The second is reach. Because the view is built from process rather than fixed content, it keeps working when the world does something new, which the world has an inconvenient habit of doing. A morality conceived as a list of rules struggles the moment it meets a situation no rule anticipated. A morality conceived as a direction has something to say about any situation at all, because it was never a list; it was a way of telling which way is forward. This matters more each year. We are now building artificial agents — systems that pursue goals, weigh options and act at enormous scale — and finding that the urgent question about them is not one the old frameworks know how to ask. It is not “which rules did we install?” but the question this view is built around: whose values, made coherent in what way, over how wide a context? A morality that speaks only the language of human virtue or human rules has little to say to a new kind of mind. One that speaks the language of agency itself has a great deal to say, to any agent we might meet or make.
I will be careful not to oversell. The same breadth that gives this view its reach makes demands of its own, and it raises hard problems: how to compare degrees of coherence, how to keep effective agents from becoming efficiently terrible, how to handle the disagreements that do not dissolve. Those have their place later in the book, and when we reach the difficult cases I will take you straight into them rather than around. But I want the prize visible from the start: a way of thinking about right and wrong that is honest about where it stands and supple enough to go with us into the situations we are now entering.
How to travel this book
A word on the route ahead, so you can keep your bearings.
The book comes in two parts. The first builds the machinery, and it starts further back than you might expect: with a short Prologue on how structure, and then selves, arose in a universe with no plans, and with the way novelty arises in complex systems of every kind. Morality, I will argue, is continuous with those processes rather than an exception to them. From there we turn to what it is to be an agent at all: a self with a particular window on the world; an agent that comes to model both what matters to it and what works for it; the way meaning gets made from context; the way single agents combine into families, communities and whole cultures that act, in their turn, as agents themselves. Only with all of that in hand will I state the arrow in full — how agents assess their acts as more or less moral, and what the direction looks like lived, as meaningful growth — and the one-sentence claim from a few pages ago will, I hope, read less like a claim taken on trust and more like something you can see for yourself.
The second part puts the machinery to work: on foresight and the long future, on the hard labor of deciding things together, on what it might mean to live well, and on how whole cultures learn and change. It also changes shape. The first part is a ladder, its chapters numbered because each rests on the one before and meant to be read in order. The second is four open territories — The Inheritance, The I, The We and The Arrow — that you can take in any order with little lost. A theory that never touches the ground is not worth much; this is where this one touches it.
The footing is different too, by design. The first part aims to stand: to set the theory down as clearly and defensibly as I can. The second reaches into a world that will not hold still, so it travels lighter — more provisional, more speculative, readier to be revised as the world and our understanding move. That is not a retreat but the theory keeping faith with itself: direction rather than destination, a map redrawn in the walking. Where the second part recommends, that is me assessing by my own values and offering the result for you to assess by yours; the framework itself issues no verdicts. So take it less as conclusions handed down than as an invitation to think alongside me about how the arrow’s logic meets our own moment, and the moments still to come. Much of the book also sits a little to the side, in the Supplemental essays. In the first part they mostly deepen and defend what the chapters have argued; in the second they do much of the work of applying the theory, and they are the part of the book most likely to keep growing as we learn.
Throughout, you will keep company with two people, Abel and Tara. They are not there for show. They question each other, object, and refuse to let a tidy claim pass unexamined, and they say out loud the doubts you are likely to be having at the time. They are there because I do not want you to take any of this on faith, and a good conversation between two honest people who do not yet agree is the oldest device we have for making sure you don’t have to.
An invitation
Let me end where we began, with the two minds we are of about right and wrong.
Are we getting better, or only changing? The answer this book offers is: both — and “both” stops being a contradiction once “better” means heading outward rather than arriving. We are only changing, in the sense that there is no final destination we are nearing, no bell that rings when morality is finished. And we are improving, in the sense that there is a direction — wider concern, fuller coherence, more capable and more inclusive care — and we can tell, in any particular case, whether we are moving along it or sliding back. The history of our morals really is two steps forward and one step back, just as it looks. But the arrow holds its heading through all the stumbling, and that is enough. It is, in fact, all we have ever had.
One last thing before we begin in earnest. If morality is a process and not a possession — a direction we travel rather than a code we were issued — then it is not something that merely happens to us. It is work we do. Every agent that values anything and acts on it is already, with every choice, moving a little one way or the other along the arrow. My case in this book is that we can do that work far better by doing it on purpose: by understanding the process we are already part of, and choosing, with open eyes, to widen rather than to wall off. That is the invitation. It is not a verdict handed down for you to obey, but a clearer view of the work you are already doing, and a case that taking it up deliberately may be the most consequential thing a thinking agent, of any kind, can choose to do.
So that is the claim: morality as a direction, not a destination.
Let us see whether it holds up.