The Ordered Cosmos

2003, Oxford

Are we rendered?

Nick Bostrom and the simulation argument

A philosopher proved that one of three things has to be true, and one of the three is that you are almost certainly inside a computer. Plato's cave with a graphics card.

In 2003 an Oxford philosopher named Nick Bostrom published a short paper that has refused to die. It does not say we live in a simulation. It says something more annoying: one of three statements has to be true, and we do not get to choose which.

The three doors

One. Civilizations almost never reach the technology to run detailed simulations of their own ancestors, because they die or stop first. Two. Civilizations that do reach it almost never bother, for ethical or economic or boredom reasons. Three. You are almost certainly in one.

The reasoning behind door three is just counting. If even a few civilizations run ancestor simulations, and each one runs many, then simulated minds vastly outnumber original minds across the whole history of the universe. A randomly picked conscious being is then overwhelmingly likely to be simulated, and you have no evidence you are not a randomly picked conscious being. So unless door one or door two is the truth, the odds are against your being made of atoms.

Bostrom himself puts door three under fifty percent and will not get more specific. Elon Musk said on stage in 2016 that the odds of our being in base reality are one in billions, which is a confidence the argument does not support. David Chalmers wrote six hundred pages on it in 2022 and concluded we cannot know, that it would not make your life less real if true, and that the idea deserves the same respect as any other serious metaphysics. That is about where things sit.

It is very old

Only the hardware is new. Plato's prisoners in the cave watch shadows on a wall and take them for the world. Zhuangzi, in China a generation later, dreamed he was a butterfly and woke up unable to say whether he was a man who had dreamed of being a butterfly or a butterfly now dreaming of being a man. Descartes imagined a demon feeding him fake experiences and found the one thing he could not doubt was the doubting. The Hindu and Buddhist traditions have maya, the world as a veil. The simulation hypothesis is all of that restated by people who have played a video game, and the restatement adds exactly one thing the old versions lacked: a reason to think the deception would be cheap.

Why it is on this shelf

This site asks whether the universe is ordered and whether we are inside the order. The simulation hypothesis is the only modern idea that says yes to both in the most literal way possible. A simulated universe is ordered because somebody wrote it. Its laws are code. Its constants are a config file. And we are inside the order in the fullest sense available: we are the order, running.

Look what that does to the oldest line on the shelf. As above, so below was the Hermetic claim that the pattern of the heavens and the pattern of a life are one pattern at two scales. In a simulation that is not mysticism. It is architecture. The same engine renders the planets and the people, and any correlation between them would be a matter of how the code was written, not of forces crossing space. Jung's synchronicities become something a programmer put in, or a glitch in the random number generator. None of this makes astrology true. But it is a hell of a thing that the most hard headed metaphysics of this century rebuilt the exact conditions under which the oldest one would make sense.

What is still open

All of it. No experiment has caught a simulation in the act, though people have proposed looking for a grid in the cosmic ray spectrum, a sign that spacetime is pixelated. There is no agreement that a simulated mind would be conscious, which the whole argument needs. And there is the regress: whoever is simulating us may be simulated too, all the way up, with no base reality anywhere, which is either the fatal flaw or the whole point.

What the argument has permanently done is make it harder to say with a straight face that the universe is obviously a machine with no author. The one kind of universe we know how to build is exactly that, and it would have one.