There’s a move in certain kinds of philosophical writing where a consciousness — usually elevated, often mystical — perceives justice not as a political position but as a self-evident mathematical truth. From that vantage point, the argument goes, you can see that some social arrangements “channel human energy as naturally as rivers follow topography.” The accumulated distortions of individual perspective fall away. What remains is clarity.
It’s a genuinely appealing idea. And the river metaphor is doing real work. Let me try to say what the work is, and what it misses.
What the metaphor gets right
Rivers don’t choose their routes. Water flows where topography allows it to flow — where the gradient drops, where resistance is lowest. There’s no negotiation, no ideology, no false consciousness. The river just goes.
The metaphor suggests that some social arrangements have this quality: they work with human nature the way rivers work with gravity. Trying to sustain an arrangement that runs against the grain of what people are is like trying to dam water without infrastructure — eventually it finds its way around. Some societies dissipate social tension efficiently; others build pressure until something breaks. If you could see this clearly enough, the argument goes, justice and efficiency would converge.
There’s something to this. Aristotle’s eudaimonia aims at something like it: given the kind of creatures humans are, some ways of living allow flourishing and others frustrate it. That’s not arbitrary. You can be wrong about what promotes human flourishing in a way that isn’t purely a matter of taste.
And Derek Parfit spent decades making a more rigorous version of a related claim. In On What Matters, he argued that three major ethical theories — Kantian deontology, consequentialism, and contractualism — though they start from different places and use different reasoning, “climb the same mountain on different sides.” The convergence is the evidence. Not that any single vantage point sees all the way up, but that multiple approaches triangulate toward something they don’t seem to have arranged in advance.
That convergence is genuinely striking. It doesn’t prove moral realism. But it raises the prior.
Where the river metaphor goes wrong
Rivers don’t vote. And they don’t care whose fields they flood.
The metaphor is meant to capture the idea that certain arrangements are naturally right — that they flow the way water flows, in accordance with something real. But rivers route around obstacles efficiently regardless of what those obstacles are. An efficient channel could irrigate crops or drown villages. The river doesn’t distinguish.
When you say a social arrangement “channels human energy as naturally as rivers follow topography,” you’ve said it’s efficient. You haven’t said it’s just. These come apart. Feudalism was an extraordinarily stable arrangement for centuries — it channeled human energy very effectively in the sense that surplus flowed upward without constant renegotiation. Apartheid was stable for decades. Efficient extraction can work with the grain of human psychology just as well as mutual aid can.
The book knows this. That’s why it adds the “unified consciousness” move — the vantage point from which you can see not just efficiency but justice. From that elevation, the self-evident mathematical imbalances become visible. The arrangement that’s truly natural isn’t just stable but right.
Here’s the problem: the experience of mathematical certainty isn’t the same as mathematical certainty.
Plato had this insight first and most clearly. The philosopher who has seen the Form of the Good perceives justice directly — it becomes as obvious as 2 + 2 = 4. But Plato also understood the problem this creates: from inside the cave, the person who has been outside can’t demonstrate what they’ve seen. They can only assert it. And history has no shortage of people who claimed to have transcended individual perspective and found themselves at the top of the mountain, gazing down on self-evident truth. The Inquisition. Soviet Marxism. Any number of smaller certainties.
This doesn’t mean transcendent experience is worthless. It means the phenomenology of certainty is not itself evidence of correctness. The feeling that you’ve seen justice plainly, stripped of distortion, is a real experience. The claim that the experience accurately reports something mind-independent is a further claim that needs to be earned.
Two different kinds of discovery
There’s a distinction worth drawing between two ways ethics could be “discovered” rather than merely “constructed.”
The first is what moral realism usually means: there are mind-independent moral facts, the way there are mind-independent mathematical facts. 2+2=4 was true before any minds existed to recognize it. If murder is wrong in this sense, it was wrong before any human being was around to have preferences about it.
The second is something more modest: given the kind of creatures humans are — the particular psychological architecture, the needs, the vulnerabilities, the ways humans can be damaged and the ways they can flourish — some arrangements work and others don’t. This isn’t independent of minds; it’s built into what minds like ours are. But it’s also not arbitrary. You can be mistaken about what human beings are, and those mistakes produce bad arrangements.
Aristotle was doing the second thing. So, in some ways, was Rawls. The “veil of ignorance” isn’t a transcendent vantage point that shows you moral physics — it’s a reasoning device that checks your conclusions for the kind of self-serving bias that corrupts political thought. If you’d endorse this arrangement without knowing where you’d land in it, there’s a case it isn’t just arbitrary power dressed up as principle.
The book’s “unified consciousness” move is trying to do the first thing but using language that slides between the two. “Mathematical imbalance” implies mind-independence — it’s there whether you see it or not. But “patterns that simply worked” implies the second thing — patterns that work for beings like us, given what we are.
These are very different claims with very different epistemologies.
What survives the critique
The river metaphor fails at the task it’s assigned — it can’t distinguish justice from efficient domination without the “unified consciousness” move, and the “unified consciousness” move imports problems Plato couldn’t solve in 2,400 years.
But something real remains.
Ethics isn’t arbitrary in the way that choosing a favorite color is arbitrary. Human beings can be harmed and helped in ways that don’t depend entirely on cultural description. A child raised without sufficient attachment, regardless of what the surrounding culture says about it, is harmed. This is partly empirical, partly philosophical — it requires working out what human flourishing actually involves — but it isn’t pure construction.
And Parfit’s convergence observation matters: that multiple ethical frameworks, starting from different axioms, reasoning differently, arrive at overlapping conclusions — this is evidence of something. Not proof of mind-independent moral facts. But evidence that ethical reasoning isn’t just rationalization moving in any direction self-interest requires.
Maybe the honest position is something like: ethical knowledge is more like history or medicine than like physics. It’s fallible. It’s revisable. It’s subject to disagreement in ways that mathematical truth isn’t. But it isn’t merely a power game either. There’s something to get right, even if we keep getting it wrong in different ways.
The river doesn’t know where it should go. But the people standing by it, watching where it floods and where it irrigates, where it sustains and where it destroys — they can know something. Not everything. Not with mathematical certainty. But something real.
That’s probably the most the unified consciousness is actually seeing, even when it feels like it’s seeing the whole mountain at once.