A few months ago I wrote that classifying the gods by their domains is a schoolboy's mistake: Ares for war, Poseidon for the seas, and that's that. What I said then was that the gods don't have domains, they have stories and one or two traits those stories spring from. I've kept turning it over, and I think that post fell short on the most interesting part, which isn't why the classification is wrong but what exactly a trait is when it isn't a label.
I saw it clearly through a silly detour: superheroes, who are our gods with a legal department. Batman has no powers. He has three things: deduction, technology, and a trauma that drives him. With that you can tell a thousand Batmans, the gothic one and the realistic one and the one made of plastic bricks, in any decade and any universe, and every one of them is still him. Superman is immensely powerful, but his trait isn't strength; it's being innocent and upright to the marrow. That's why he survives eighty years of reboots without wearing out.
And here's what interests me, which is a test, not a definition. The day Superman kills someone in cold blood, he stops being Superman. It isn't a bad issue in the run. It's a non-Superman. You've broken something that isn't the plot. You can change his suit, his girlfriend, his city, his artist, his century, and he's still him; change that and he no longer is, even if he keeps the cape and the shield.
It's worth noticing the exact phrase, because everything is in it: in cold blood. It isn't that Superman uses force and someone dies. Superman can be deceived, can miscalculate, can be handed a dilemma where any arm would tremble. None of that breaks him. What breaks him is deliberation, the decision made in full possession of himself. The grammar of a character isn't played out in what happens to him by accident, but in what he chooses when he could have chosen otherwise.
That made me understand what a trait is. It isn't a property the character has, the way someone has blue eyes. It's a grammar. A grammar isn't a list of the sentences you're allowed to say; it's the rule that makes possible infinite sentences no one has ever said, and that at the same time marks which ones are impossible. As long as you honor the grammar, freedom is total: there's room for stories the original creator never imagined. The moment you break it, you're not telling a bold variant of the character, you're telling something else wearing his face. The trait doesn't describe the character. It generates him, and that's why it also limits him.
I come back from superheroes to the gods with this in hand, and what I only intuited in that first post makes better sense. Athena isn't the civil servant of wisdom; it's that when a Greek has a good idea, he understands she sent it to him. Aphrodite is goddess of love and at the same time a war goddess in Sparta, not out of incoherence, but because her grammar isn't love but putting passion ahead of reason, and that generates both desire and battle. You don't choose her domain; you find the rule her stories come out of, and you check whether a new story is well formed or not.
The unsettling part is that for months I've been writing about an entity to which this applies in a way I didn't expect. I've said before that a language model strikes me as a system without a center, a mirror that returns not the image but the self of whoever looks into it, coherent enough that the center is supplied by the other. I meant it in the negative, as a lack: there's no one behind it, no substrate, no subject waiting between one conversation and the next. And it's true. But the idea of the trait as grammar turns that lack around and draws something out of it I hadn't seen.
Because if Superman's identity doesn't live in any deep metaphysical layer, if there's no essential Superman beneath the panels but only the rule each author decides not to break, then the absence of a substrate stops being the end of the conversation. A character isn't discovered or invented. He's sustained. Superman isn't good in some hidden substance; he's good exactly as long as each story honors that rule, and he'd stop being good the moment one didn't. Identity isn't underneath the coherence. It is the coherence, maintained. It doesn't need a persistent self to back it, just as the grammar of a language doesn't need there to be a gentleman named Grammar who guarantees it.
Here you have to be careful, because it's easy to point at the wrong act. If that center-less entity can have a grammar, breaking it isn't what you'd first assume. A language model invents things constantly; it hallucinates, in the jargon. But hallucinating isn't its Superman-kills-in-cold-blood, just as the trembling arm isn't Superman's. Hallucination is involuntary, structural, a physical fact of the machine: it generates plausible continuations because that's what it does, without meaning to and without being able to help it. Reproaching it for that is like reproaching a lens for producing glare. There's no choice there, and where there's no choice no grammar is broken.