The atheist who refused to make the human being small

The first thing that surprised me about David Deutsch was not how far he stood from religion. It was how little interest he had in the usual secular consolation prize.

He did not want a universe in which human beings were accidental animals who invented local meanings to keep themselves warm. He wanted morality to be real, beauty to be objective, freedom to matter, and the future to remain open. He wanted to say that persons occupy a special place in reality without apologizing for the claim. Most of all, he wanted to make despair look intellectually lazy.

I recognized the shape of that vision before I understood the argument behind it. Here was a physicist at Oxford, a pioneer of quantum computation, and a committed atheist. He had rebuilt several convictions I associated with Torah: the significance of the human being, the unfinished character of creation, the duty to resist avoidable suffering, and the trust that reality can be understood. My first instinct was to call the whole thing borrowed religious capital. The phrase was satisfying. It was also too easy.

Deutsch has arguments of his own, and some are formidable. A fair encounter with him has to begin there. The question is not whether an atheist can believe that persons matter or that moral truth is real. Plainly, many do. The better question is what kind of account Deutsch has built, what it explains with unusual power, and what remains when the human question changes.

Explanation can tell us why disease should be cured. Can it tell us how to remain with the person whose disease will not be cured in time? It can describe a person as a creator of knowledge. What does it say about the human being who will never create an explanation? It can discover a moral truth. What turns that truth into a habit strong enough to survive fatigue, fear, and self-interest?

The secular cathedral Deutsch has built is magnificent. This essay is no longer an attempt to show that its stones were stolen. It is an attempt to understand what kind of life the building can shelter, and what covenant adds when explanation has done everything explanation can do.

Matter can wake up and understand matter

Deutsch begins with explanatory knowledge. A bee can build a hive of astonishing complexity, but it cannot explain what a hive is. A star can fuse hydrogen for billions of years, but it cannot formulate a theory of fusion. Human beings can understand both, criticize what they think they understand, and replace a bad explanation with a better one. Then they can use the new explanation to rearrange the world.

For Deutsch, explanatory knowledge is more than one impressive ability among many. It marks a discontinuity in the structure of reality. A person is a universal explainer, an entity whose capacity to create knowledge has no built-in ceiling short of the laws of physics. We begin ignorant, remain fallible, and never reach final certainty. Even so, there is no fixed list of truths from which our kind of mind is permanently excluded.

That claim changes the meaning of human smallness. A galaxy is larger than a person, but it does not know it is a galaxy. A black hole can bend light, but it cannot explain gravity. The person is physically tiny and explanatorily vast. Scale is no longer the measure of significance.

From this comes Deutsch's principle of optimism. “Problems are inevitable. Problems are soluble.” He does not mean that every individual will survive or that history automatically improves. He means that any evil whose removal is permitted by physics can be removed once the necessary knowledge exists. That knowledge might be scientific, moral, political, or institutional. A famine can persist because crops fail, because distribution fails, because a government lies, or because nobody has yet discovered the arrangement that would prevent all three. In each case, resignation mistakes current ignorance for a law of nature.

This is one of the strongest moral ideas in his work. Do not call suffering necessary merely because it is old. Do not turn ignorance into humility. Do not protect an institution from criticism because your ancestors built it. The world contains real evils, and human beings have a responsibility to create the knowledge that can end them.

Deutsch carries the same realism into morality. Abolition was an objective moral improvement, he has said, and slavery would have been wrong even if nobody had recognized it. He rejects the idea that morality is only preference with a serious tone of voice. Moral knowledge grows as other knowledge grows, through conjecture, criticism, error, and correction.

He also defends free will. His account does not require a soul to interrupt the laws of physics. Freedom appears when a person creates something genuinely new in thought, considers alternatives, criticizes them, and becomes responsible for what follows. Beauty, too, is objective on his view. The flower and its pollinator become evidence that minds separated by evolution can converge on structures that are not merely private taste.

Nothing here is Judaism hidden inside physics. The architecture is Deutsch's own: fallibilist, realist, anti-authoritarian, and radically hopeful. Any religious response that cannot admire it has not understood it. The disagreement begins only after the building has been allowed to stand.

What do we owe the person who cannot explain?

The obvious objection to Deutsch is easy to state and easy to state badly. If people matter because they create explanatory knowledge, then perhaps the people who create more knowledge matter more. The physicist outranks the clerk. The inventor outranks the person who needs care. Society should concentrate its resources on the minds most likely to transform the future.

But Deutsch does not rank people that way. A universal explainer is not a person with an impressive résumé. Universality names an open-ended kind of capacity, not a score. A child knows less than an adult and may still be the same kind of knower. Deutsch's work on taking children seriously is built around this refusal to treat some persons as a lower human class merely because they have less power, experience, or knowledge.

The real difficulty appears at the boundary. What do we say about the child with a profound cognitive disability who may never create an explanation? What about the person with advanced dementia, or the patient whose capacity has permanently disappeared? If personhood is defined through the creation of explanatory knowledge, it is not clear how every human being enters the category.

Secular philosophy does not fall silent here. Kantian accounts treat dignity as a threshold rather than a scale. Capabilities theories begin from what each human being must be enabled to do and to receive. Relational accounts argue that moral status also arises from the bonds of care, dependence, and human community into which a person is born. These are serious attempts to protect equality without grounding it in God. They should be met as arguments, not dismissed as faded religious memory.

They also reveal how hard the question is. Any account based on rational agency has to explain the human being who lacks it. Any account based on reciprocal agreement has to include the person who cannot reciprocate. Any account based on capacities has to decide whether potential, species membership, relationship, or care can carry what actual ability cannot.

The Mishnah speaks in another grammar. It does not begin by measuring a faculty. It begins with Adam created alone. Every life therefore carries a world, every act against a life reaches beyond what can be counted, and no person can tell another that his lineage is greater. Genesis supplies the earlier sentence: the human being is made b'tzelem Elokim, in the image of God.

The Mishnah does not make every boundary problem disappear. Jewish law still has categories, conflicts, and tragic cases. The difference is the first posture. The person is not waiting for us to discover the property that makes him valuable. He arrives already bearing a claim. His worth is given before it is argued, and the commandment addresses us before we decide whether caring for him advances any larger project.

The strongest case for tzelem Elokim is not that secular ethics has no answer. It is that Torah refuses to let the answer depend on performance. The disabled child does not need to be a possible Einstein. The dying grandmother does not need one more contribution ahead of her. A world is already there.

The good we know and the good we become

Suppose Deutsch is right that moral truth is objective and discoverable. A second problem remains. Knowing a moral truth and becoming the kind of person who lives by it are different achievements.

I can know that I should give more and still keep my hand closed. I can understand why humiliation is wrong and still humiliate someone when I am tired. I can believe in the equal dignity of every person and become impatient with the one who needs my time. Error correction can improve a moral theory. It does not automatically retrain an appetite.

Robert Putnam and David Campbell found a version of this distinction in American Grace. Frequent religious attenders were much more likely than rare attenders to report several kinds of volunteering and civic participation. In one comparison, 40 percent of weekly attenders reported volunteering to help the poor or elderly, against 15 percent of people who seldom or never attended. Other categories showed different gaps, not one universal multiplier.

The most interesting finding was the mechanism. Private belief, denomination, and theological orientation explained less than the friendships people formed inside congregations. People with many church friends were more likely to volunteer for nonreligious causes, join groups, work on community problems, and give beyond their own congregation. Repeated relationships mattered.

The result does not prove that religious people are morally better. The data is observational, much of it self-reported, and people select the communities they join. Secular communities can also form generous lives. A union, neighborhood association, recovery group, school, or disciplined community of service can create obligation through repetition. The narrower lesson is more useful: moral action grows inside institutions where people return, are known, are expected, and practice together.

Judaism has spent a long time building such an institution around the whole day. Tzedakah is not left as a warm feeling about generosity. It becomes an obligation with amounts, priorities, and recipients. The blessing before eating interrupts appetite with gratitude. Shabbat interrupts production with limits. Prayer interrupts self-sufficiency. Mourning has a calendar. Joy has a calendar. The stranger, the worker, the animal, the field, the debt, and the body are all brought inside commanded practice.

The point of halakhah is not that Jews possess better information about goodness. The point is that information must enter muscles, meals, money, speech, and time. Maimonides legislates levels of giving because he knows how inventive the mind becomes when it wants to keep what the hand is holding. Practice does not wait for motivation to become pure.

Deutsch's philosophy is not obligated to become a religion, and it would be unfair to criticize a theory of knowledge for lacking a prayer service. Still, the contrast matters. His work gives a powerful account of how moral knowledge can grow. Covenant asks how a person is grown by what he knows.

The gap is not between reason and superstition. It is between a true idea and a formed life. Reason can correct the map. A community of practice teaches the feet where to walk.

The flower and the blessing

One of the strangest and most appealing chapters in The Beginning of Infinity concerns flowers. Deutsch asks why human beings find them beautiful. Flowers did not evolve to attract us. Many evolved through a relationship with pollinating insects whose sensory systems and evolutionary histories differ sharply from ours. Yet the same flower can draw the bee and stop the person walking past it.

Deutsch takes the convergence seriously. He thinks it points toward objective aesthetic standards, features such as order, harmony, and structural elegance that different kinds of minds can discover. Beauty, on this account, is not merely whatever a culture happens to applaud. Some works disclose more of it than others, just as some explanations disclose more of reality than others.

The argument is suggestive rather than conclusive. Shared attraction may tell us something about evolved perception without establishing a mind-independent realm of beauty. The jump from flowers to Bach also needs more work than a chapter can give it. Still, Deutsch preserves something that easy relativism loses. A great work of art can feel less like a preference and more like a discovery. We do not only enjoy it. We sense that we have noticed something.

Judaism adds a different question. What is the right response to beauty once it has been noticed?

The answer often takes the form of a blessing. On seeing something in creation that carries unusual beauty, the tradition trains a person to answer with words. The blessing does not prove where beauty exists. It changes the relation between the one who sees and the thing seen. The moment is received rather than consumed.

This matters because beauty does more than transmit information. A mother's lullaby can carry a child into sleep. A melody can keep a displaced people attached to a home they have never seen. A line of poetry can remain in a person for half a century and become available at the exact moment ordinary speech fails. Calling these events cognitive achievements is not false, but it is incomplete. They involve knowledge, memory, attachment, gratitude, and sometimes reverence.

Tiferet, beauty or harmony, becomes in Jewish mystical language a way of speaking about how divine abundance enters a world of difference without destroying it. That is not a deduction from Deutsch's flower. It is a Jewish reading of the experience he is trying to protect.

Deutsch asks what makes the flower beautiful. Judaism also asks what the sight of it asks of you. The first question concerns truth. The second concerns relationship. Neither cancels the other.

The universal explainer and the commanded person

I once thought the same thing was happening at every point in Deutsch's philosophy. He would affirm dignity, morality, freedom, beauty, or hope, and then reach for a foundation his secular premises could not supply. The pattern was elegant. It was also too neat.

There are secular moral realists who believe moral claims can be objectively true. There are Kantian accounts of dignity, capabilities accounts of equality, and political traditions that defend open criticism without appealing to revelation. The history of an idea and its present justification are not the same question. Even if biblical religion helped form the West's language of equal worth, it does not follow that every secular defense of equality is an unpaid debt.

Another distinction matters more. A philosophy can justify a moral claim without forming a person to live by it. A practice can form generous people without proving the metaphysics they profess. An institution can sustain civic friendship without settling the meaning of life. Genealogy, justification, formation, and endurance overlap. They cannot be treated as one argument.

Rav Joseph B. Soloveitchik offers a cleaner way to see the meeting. In The Lonely Man of Faith, Adam I is majestic man, the scientist and builder commanded to master the world. Adam II is covenantal man, the creature who discovers himself addressed, limited, lonely, and responsible before God. The Rav refuses to erase either one.

Deutsch gives us one of the strongest modern accounts of Adam I. The person explains, criticizes, invents, heals, and changes the conditions of life. The missing dimension is not a secret religious premise inside the physics. It is Adam II: the person who can be summoned, who can answer, and whose worth is not exhausted by what he can understand or build.

Set the two accounts beside each other and the relationship becomes clearer. The comparison is no longer a ledger of debts. It is a map of two human grammars.

The map does not divide the believer from the secular thinker, as though one side possessed meaning and the other side possessed only machinery. Deutsch's moral realism is real. His account of knowledge is real. The Jewish claim is that the human being is more than the sum of those achievements.

A person explains and is addressed. He builds and is obligated. He corrects errors and inherits practices he did not invent. He can transform the world, and he can be summoned by someone whose need will never become a contribution to the growth of knowledge. Adam I and Adam II occupy one life.

Some problems are not solved in time

Imagine two people sitting beside a hospital bed. One is a scientist working on the disease that brought the patient there. The other is the patient's friend. The scientist's task is to create the knowledge that might one day make this scene unnecessary. The friend's task is to remain.

Nothing in the second task diminishes the first. Religion has sometimes turned preventable suffering into a spiritual test and called passivity humility. Deutsch is right to reject that move. Cancer is not made holy by being difficult. A treatment delayed by ignorance is not fate. We should solve everything that can be solved.

But knowledge has a deadline. The cure may come five years after this patient dies. The institution may be corrected after the victim has been crushed by it. The war may end after the child has lost a parent. The principle of optimism concerns what humanity can eventually know. A human life is lived before eventually arrives.

What does a philosophy of soluble problems say in the interval?

It can still say a great deal. Comfort can reduce pain. Honest information can protect choice. Better institutions can keep one tragedy from becoming another. Yet there is a remainder that is not another technical problem. The person needs to know that failure to save him will not become permission to leave him alone.

This is where Rav Soloveitchik's Adam II becomes more than a theological category. Adam II is the person who cannot master his way out of finitude. He becomes ill, waits, grieves, confesses, and asks whether anyone knows him beyond his public achievements. He does not stop being Adam I. He still wants the physician, the engineer, and the cure. He also needs covenantal presence.

Jewish practice is often most exact where explanation is least available. Visiting the sick is a commandment. Mourners are not required to produce conversation; visitors enter their silence and wait for them to speak. The community brings food because grief has entered the body and made ordinary tasks difficult. Kaddish does not explain the death. It gives the mourner words and makes sure he does not have to say them alone.

Covenant does not answer why this person suffered. It refuses to let the absence of an answer become the absence of a relationship. It says that a human being can still be accompanied when he cannot be repaired, and still carry a world when his future has become short.

Deutsch teaches us not to surrender to the problem. The covenant teaches us not to surrender the person to it.

The steadiness that remains when the answer is hidden

It would be tempting to say that Deutsch's optimism is really emunah under another name. I once came close to saying exactly that. The resemblance is real, but the words are not identical.

Deutschian optimism is a principle about problems and knowledge. If a problem can be solved within the laws of physics, then the obstacle is the knowledge we have not yet created. Emunah concerns a relationship. It asks what faithfulness requires before the missing knowledge arrives, after a plan fails, and when the future cannot yet be seen.

The Hebrew word belongs to the family of amen. Its older senses include firmness, steadiness, reliability, and fidelity. In Exodus, when Moses can no longer hold up his arms by himself, Aaron and Hur support them. The text says his hands were emunah until sunset. They were steady. They held.

That image is more exact than the usual argument about faith and proof. Moses is not pretending to possess certainty. He is tired, his strength is insufficient, and other people are carrying part of the weight. Emunah is the faithfulness that remains possible inside those conditions.

I have often described it as the load-bearing beam. That is a metaphor, not a dictionary definition. I keep it because it captures something the English word belief usually misses. A beam does not win an argument. It bears weight over time. Emunah is what allows a relationship, a people, or a life to keep its shape while the pressure on it changes.

Science also begins with forms of trust: that reality is intelligible, that criticism is worth the risk, that another mind may see an error I cannot see, and that the search for truth deserves time. These commitments are not therefore religious faith. Deutsch can justify many of them inside his own philosophy. The kinship lies in the posture of fidelity to truth through uncertainty, not in a hidden proof of God.

Jewish emunah goes farther because it has an object and a history. Abraham leaves home because he hears a call. Israel carries a covenant through exile, failure, return, and concealment. The faithful person does not merely expect a problem to become soluble. He understands himself as bound to God and to other people while he waits.

This is why the universal explainer and the commanded person belong together. Without Adam I, faith can become an excuse for ignorance. We call the disease mysterious instead of curing it. We call injustice permanent instead of correcting it. Deutsch's refusal of resignation belongs inside religious life as a rebuke.

Without Adam II, explanation can become an account of human greatness that has no language for dependence, grief, inherited obligation, or the person who cannot build. We know how to pursue the cure and not how to sit beside the bed.

The two tasks meet in an unfinished world. Solve what can be solved. Criticize every explanation, including the explanations that flatter your own side. Build the knowledge that will spare someone suffering. Then remain faithful to the person for whom the knowledge came too late.

Deutsch gave me a better account of why despair is a mistake. Judaism asks what hope must become in the hands, in the home, in the hospital room, and across generations. Hope that has entered a life becomes steadiness. It becomes fidelity. Hebrew has a word for that.

It called it emunah.