The thing that will not let you rest.

Suppose you learn to read. Suppose you notice that the person across from you flees every shape that just lost, and you begin to punish it. You see the loss land in their eyes. You know they will run, and you are already waiting where they run to. You win a throw, then another. It feels extraordinary, this sudden clairvoyance, like the lights coming on in a room you did not know was dark. And then it dies. And it dies because it worked.

This is the deepest and strangest fact about the game, and once you have seen it you cannot unsee it anywhere. Winning is loud. The moment you start to beat someone, you have announced that you have read them. And if there is anything at all behind their eyes, they feel it. They feel the pattern being punished, and they change. The very thing that won for you is the thing that erases your edge in the instant you spend it. You cannot bank a read. You cannot stand on the high ground you just took, because the high ground dissolves under your feet the moment your weight comes down on it.

So watch two real players climb. You open rock. She lays paper over it and takes the round. Round two: she expects you, stung, to flee rock the way most people would, so she readies scissors to cut the paper she assumes you will now grab for. But you do not flee. You reason that she has already caught your flinch and is hunting your paper, so you hold rock, and your rock shatters her scissors. She has been beaten by the very read she made. Round three: she climbs again, and you can almost hear it. He held rock to punish my scissors, so he believes he is a step above me, so he will expect me to expect his rock, so he will switch to scissors to cut the paper I would throw — therefore I throw rock and crush it. And you, reading her reading you, climb with her. Three rounds in, neither of you is throwing rock or paper or scissors at all anymore. You are throwing your model of her model of your model of her, and the shapes are merely where the argument happens to come to rest. To a stranger walking past, two people are playing a children's game in silence. Inside, a war of pure reason is being fought at a depth that has no floor.

And so you climb a level and she climbs with you and the staircase keeps going. I know that you know that I know that you know — there is no top to it. And here is what makes it not merely deep but inexhaustible. No one can hold the top of that staircase for long. Climb high enough and the reasoning starts to blur. You lose track of whose level you are on. You second-guess a read that was right. You talk yourself out of the truth at the last possible instant and throw the clever thing instead of the correct one. The whole exquisite structure collapses. Both of you tumble back to the ground floor, and within a throw or two it begins again from nothing. There is no settling into mastery and coasting on it. The war resets and resets and resets, for exactly as long as two people keep caring who wins.

Which is why the game never goes stale between two players who are any good. You might imagine that after a thousand rounds you would have each other memorized, the well run dry, nothing left to find. The opposite happens. Every adjustment one of you makes is a fresh thing for the other to read. Every read is a fresh thing to disguise. The better you both become, the faster the staircase turns and the higher it reaches. Two strong players are not slowly exhausting the game between them. They are building it taller, round after round, out of each other, and they could play for the rest of their lives and never reach the top of the thing they are making.

People mistake this for a flaw. They assume a game with no stable answer must be shallow. It is the exact opposite. The absence of any resting place is the entire depth of it. Two minds climbing, neither permitted to stop, neither permitted to hide, each one's success feeding the other's adaptation in an endless loop. That is not a game with no bottom. That is a game that is bottom all the way down.