Introduction — The Restless Arrow
Why Morality Was Never a Destination
Two minds about right and wrong
We’re quite sure our great-grandparents got some things terribly wrong, and just as sure our great-grandchildren will say the same about us. We mean both. Put side by side, they come close to contradicting each other — and that’s where our moral lives get interesting.
The first thought is that morality has gotten better. We look back at slavery, at torture put on as public entertainment, at wives owned like property and unwanted babies left outside to die, and we don’t just dislike it. We judge. We say those things were wrong, and that coming to see it was a real step forward. The second thought pulls the other way: our own certainties are no safer than anyone else’s. We’re standing in a moment too, one that will look quaint or monstrous from far enough away. Plenty of thoughtful people hold both thoughts and flip between them without noticing. In an open-minded mood we say right and wrong depend on time and place. When something cruel happens, we say it’s just plain wrong, anywhere and in any century.
The two can’t both stand, not without some hard thinking. If morality only changes — a kind of fashion in how people behave, no better grounded in one age than another — then being outraged makes no sense. It would be like getting indignant that someone else’s favorite color isn’t yours. But if morality improves, it seems it has to be improving 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 people who lived long before it, or far away from it, were bound by it. Refuse to name one, and there’s nothing left to stand on when you call anything wrong.
There’s a third way, and it’s what this book is about. It isn’t a halfway house — morality as sort of relative and sort of absolute. It’s a different reading of what the question was asking. The trouble, I’ll argue, isn’t that we’ve failed to find morality’s true target. It’s the assumption that morality has a target, a place to get to, rather than a direction.
The difference between a place and a direction matters for everything that follows. A place is somewhere you arrive, and then you’re done. A direction can be followed from anywhere, as long as you like, without ever arriving, and it still tells you at each step whether you’re going the right way. Outward is a direction like that. There’s 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 pulled you back in. My claim is that getting more moral is that kind of direction — much more like heading outward than like reaching a city you could settle down in — and that almost every knot in moral philosophy comes from hunting 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 an honest answer to one question: what makes an act good?
One answer points to consequences: an act is good if it leads to good outcomes — more flourishing, less suffering. (Philosophers call this consequentialism: judging acts by their outcomes.) A second points to rules: an act is good if it honors a duty that holds no matter what happens — keep your promises; don’t use a person as a mere tool. (That’s deontology, the ethics of fixed rules.) A third points to character: an act is good if it’s what a generous, brave, honest person would do. (Virtue ethics: judging by character.) Each one is the work of centuries of careful argument, and each has hold of something real. I’m not out to knock them down; a lot of what follows stands on their shoulders. But lean hard on any one of them in a difficult case and watch what gives.
Picture cruelty carried out with perfect efficiency — every step well chosen, all in service of an end almost anyone would call monstrous. The consequences person reaches for a tally and finds that “good outcomes” depends on whose outcomes get counted, and over how long, and that most of the consequences of anything are hidden from us ahead of time. The other two trip on an ordinary hard case; no monster needed. The rule-follower finds that every rule, however wise, sooner or later meets the situation that makes it absurd, and that a clever enough mind can find a loophole in any rule. The character person asks what a good person would do, and finds that real good people disagree — courage can pull against caution, mercy against justice — with no further virtue standing by to settle it.
It’s tempting to see three separate breakdowns. I think it’s one breakdown in three forms. Each tradition ties morality to something that holds still — a fixed measure of good outcomes, a fixed rule, a fixed picture of the good person — and then applies it to a world that won’t hold still for anybody. Situations shift. Knowledge grows. The scale of what we do swells until a choice that was harmless among a hundred people turns catastrophic among a billion. New kinds of agents show up that no rule saw coming. A fixed anchor in a moving world doesn’t steady the ship; it drags it. Inside any one situation held still, each tradition says something sound about what’s right there; the trouble starts when that frame is taken for the whole picture. The famous puzzles of ethics, the ones that fill seminar rooms, come from there.
There’s one more reason no fixed answer can be the last word, and it will matter later. Suppose someone hands you the true and final standard of the good. You’re entitled to ask it the very question it was invented to answer: and is that standard itself good? If the answer is “yes, because it leads to such-and-such further good,” then the standard wasn’t final after all — the further good was, and you can ask the same question of that. Any standard we could write down today would be a snapshot of what we understand now, cut off from whatever we come to understand tomorrow. So it would always be possible, and reasonable, to step a little further out and ask whether the snapshot got it right. A target you can always sensibly aim past isn’t really a target. This kind of endless backing-up is fatal to the search for a final destination. It’s no problem at all — it’s even helpful — to the search for a direction.
From a place to a direction
So let’s change the question. Instead of asking what is the Good, as if it were an object to find, pin down and measure against, let’s ask what moral improvement looks like while it’s happening.
This isn’t a dodge. It’s 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 things had and dead things lacked. The breakthrough came from asking instead what life does: how it keeps itself going, adapts, reproduces, repairs, evolves. Life turned out to make much more sense as a process than as a possession. Morality, I want to suggest, is the same kind of case: not a substance to find but a process to recognize — the process by which agents of every kind learn to live among others in a world they only partly understand.
So here’s the proposal, in one sentence you’re 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.
Put simply: as any agent — a person, a family, a whole society — takes more into account, what it cares about and how it goes about things tend to fit together better, and what happens when it acts keeps correcting it along the way. That direction is what this book calls morality.
Each of the big words in that sentence — values, coherent, context, methods, scope — gets unpacked over the rest of the book, slowly, with help from evolution, from the study of minds, and from a good deal of plain looking. For now I just want the shape to show. Growing more moral, on this view, isn’t arriving anywhere. It’s an agent making what it cares about more consistent and better understood, and the ways it goes after those things more capable and farther-reaching — and, the part everything else turns on, doing both as its context widens rather than narrows. That goes for a family, a community or a whole culture acting together just as much as for one person. And all along, what reaches the agent — from its own acts and from everything else it runs into — corrects both, and it goes again.
Notice what this gives back, the thing the fixed-standard view kept losing: the ability to be wrong and find out. If morality had a final destination, being wrong would mean missing it, and since nobody can see the destination, nobody could ever tell whether they’d missed it. But you don’t need to see a destination to know you’ve wandered off course. You need a compass, and the willingness to check it. The compass here is what reaches us as we go: the consequences we didn’t intend, the people whose view we left out, the contradictions in our own values that only show up under pressure. We aren’t measuring ourselves against a destination we can’t see. We’re checking, step by step, whether we’re still heading outward.
If that sounds like it gives away too much — as if, by giving up a fixed target, we’ve given up the right to call anything wrong — then you’ve landed right where you should, holding the very objection the next section answers.
Why this is not “anything goes”
It’s a natural worry and a serious one. If there’s 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 — the idea that nothing reaches across points of view — said with more confidence?
No, and the reason comes in two parts. Each gets a full chapter later, so here I’ll only sketch them.
The first part is that we don’t start out pointed in random directions. It’s tempting to imagine that, without a fixed standard, everyone’s values fly off on their own, so no two people could ever meet. That has never been our situation. We come out of a long shared history, both evolutionary and in how we each grow up, and we arrive already caring about a lot of the same things: creatures built like us, raised among others like us, reliably come to care about safety and belonging, fairness and kindness, the people close to them. Picture a tree. The people who disagree 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 fiercely. But follow any two leaves back toward the trunk and their branches join — sooner than you’d guess — at some thicker limb they share. The further down 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. Sharing a root doesn’t promise agreement on its own: two starving animals with everything in common will still fight over one carcass. What tips it toward agreement is that, as agents take in more of their situation, working together tends to get them what fighting throws away. So agreement isn’t a miracle out of nowhere. It’s the patient work of tracing back to a branch that already holds us both. We don’t have to invent common ground; we build on the ground we already share.
The second part is sharper, and it’s what keeps this whole view from sliding into “anything goes.” A direction has a forward and a backward. On this proposal, getting more moral is growing more coherent — things fitting together better — as context widens. Its mirror image is growing coherence as context narrows. We tend to admire coherence; a worldview without contradictions feels like an achievement. But look at how the most airtight worldviews get that way. A cult gets its eerie consistency by sealing itself off — treating every awkward fact as an attack and every outside voice as an enemy, until nothing is left that could contradict what it teaches. An echo chamber, a conspiracy theory, a hardening ideology: each gets more consistent by caring about less, refusing what has already reached it until its picture can’t be disturbed anymore. That’s coherence by amputation. It’s the arrow running backward, and the more perfect the consistency, the more complete the reversal.
So this isn’t “whatever you like.” Without any fixed creed, an agent can still find the line between better and worse — in the shape of what’s happening rather than its content. Is my concern widening or narrowing? Am I keeping things neat 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’s also why this view isn’t relativism. Relativism says nothing reaches across points of view; absolutism says one fixed standard does, the same for everyone, seen from no particular place at all. This book lives between the two, and is at home there. Something does reach across points of view — the direction — because we share one world and one inheritance. But it isn’t a fixed truth handed down from nowhere. It’s a heading each of us can find from wherever we happen to stand, and travel by together, never a place anyone arrives. Something beyond our views keeps correcting 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 rethinking for? Why give up the familiar furniture of fixed rules and final goods for something stranger?
Two reasons, and I’ll say them plainly so you can hold me to them.
The first is honesty about where we start. The older frameworks rest, in the end, on claims that are very hard to defend and impossible to check: that somewhere there’s an objective Good, or a set of duties woven into the fabric of things, or a fixed list of virtues good for all people at all times. You either accept those starting points or you don’t, and sensible people have talked past each other about them for thousands of years. The view in this book asks you to accept far less. It grounds morality in things you can watch happen: agents learning, adapting, refining what they value, finding common ground and losing it. You don’t need a leap of faith to see them. You can see them in a child working out what’s fair on a playground, in a profession rethinking its ethics after a scandal, in a civilization slowly widening the set of beings it would be ashamed to mistreat.
The second is reach. Because the view is built from a process rather than a fixed list, it keeps working when the world does something new — which the world has an annoying habit of doing. A morality made of rules struggles the moment it meets a situation no rule foresaw. A morality understood 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. That matters more every year. We’re now building artificial agents — systems that pursue goals, weigh options and act at enormous scale — and finding that the urgent question about them isn’t one the old frameworks know how to ask. It isn’t “which rules did we install?” It’s the question this view is built around: whose values, fitted together how, over how wide a context? A morality that only speaks 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 lot to say, to any agent we might meet or make.
I’ll be careful not to oversell. The same breadth that gives this view its reach asks things of it too, and it raises hard problems: how to compare how coherent two things are, how to keep capable agents from becoming efficiently terrible, how to handle disagreements that just won’t go away. Those come later in the book, and when we get to the hard cases I’ll take you straight into them rather than around. But I want the payoff in view from the start: a way of thinking about right and wrong that’s honest about where it stands, and flexible enough to come with us into the situations we’re now heading into.
How to travel this book
A word about the road 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, came about in a universe with no plan, and on how new things keep arising in complex systems of every kind. Morality, I’ll argue, is continuous with those processes, not an exception to them. From there we turn to what it is to be an agent at all: a self with its own particular window on the world; an agent that builds up a sense of both what matters to it and what works for it; how meaning gets made from context; how single agents join into families, communities and whole cultures that act, in their turn, as agents themselves. Only with all that in hand will I set out the arrow in full — how agents judge their acts as more or less moral, and what the direction looks like when it’s lived, as meaningful growth — and by then the one-sentence claim from a few pages back will, I hope, read less like something to take 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 job of deciding things together, on what it might mean to live well, and on how whole cultures learn and change. It changes shape, too. The first part is a ladder: its chapters are numbered because each rests on the one before, and they’re 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 without losing much. A theory that never touches the ground isn’t worth much; this is where this one touches it.
The footing is different too, on purpose. The first part aims to stand firm: to set the theory down as clearly and solidly as I can. The second reaches into a world that won’t hold still, so it travels lighter — more tentative, more speculative, readier to change as the world and our understanding move. That isn’t a retreat. It’s the theory staying true to itself: a direction rather than a destination, a map redrawn as we walk. Where the second part recommends something, that’s me judging by my own values and offering the result for you to judge by yours; the framework itself hands out no verdicts. So take it less as conclusions delivered from on high than as an invitation to think alongside me about how the arrow’s logic meets our own moment, and the moments still to come. A good part of the book also sits a little to one side, in the Supplemental essays. In the first part they mostly dig further into what the chapters have argued and defend it; in the second they do much of the work of putting the theory to use, and they’re the part of the book most likely to keep growing as we learn.
All the way through, you’ll keep company with two people, Abel and Tara. They aren’t there for show. They question each other, object, and won’t let a tidy claim slide by unexamined, and they say out loud the doubts you’re probably having at the time. They’re there because I don’t want you to take any of this on faith, and a good conversation between two honest people who don’t yet agree is the oldest tool we have for making sure you don’t have to.
An invitation
Let me end where we started, with the two minds we’re of about right and wrong.
Are we getting better, or only changing? This book’s answer is: both — and “both” stops being a contradiction once “better” means heading outward rather than arriving. We’re only changing, in the sense that there’s no final destination we’re getting closer to, no bell that rings when morality is finished. And we’re improving, in the sense that there is a direction — wider concern, values that fit together better, more capable and more inclusive care — and we can tell, case by case, whether we’re 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 keeps its heading through all the stumbling, and that’s enough. It is, in fact, all we’ve ever had.
One last thing before we really begin. If morality is a process and not a possession — a direction we travel rather than a code we were handed — then it isn’t something that just happens to us. It’s 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’re already part of, and choosing, with our eyes open, to widen rather than to wall off. That’s the invitation. It isn’t a verdict handed down for you to obey. It’s a clearer view of the work you’re already doing, and a case that taking it up deliberately may be the most important thing a thinking agent, of any kind, can choose to do.
So that’s the claim: morality as a direction, not a destination.
Let’s see whether it holds up.