---
title: "Scenarios · 9 universes, worked out · Simulation Hypothesis"
url: https://simulation-hypothesis.com/builds
description: "9 preset simulations, from a single brain in a vat to the whole universe fully entangled."
license: https://creativecommons.org/licenses/by/4.0/
credit: "Ross Allan Dahl, Simulation Hypothesis (simulation-hypothesis.com)"
---

# Scenarios · 9 universes, and what it takes to run each

Each scenario is a full set of dial settings, with the computing it takes. Open one to see that total and how each of the four schools of ethics leans. Then load it into the sandbox and change it.

[Beyond all existing hardware The Matrix Present-day Earth with billions of fully computed minds, drawn in only where someone is looking. 8.2 × 10^31 FLOPS](https://simulation-hypothesis.com/builds/sleepers)[Possible today Brain in a Vat A real brain in base reality. Only its world is computed, and everyone else is scripted. 8.2 × 10^15 FLOPS](https://simulation-hypothesis.com/builds/vat)[Possible at national scale Solipsism One real mind. The world is only as detailed as that mind can test. 10^18 FLOPS](https://simulation-hypothesis.com/builds/solipsism)[Beyond all existing hardware The 2050 Server Everyone on Earth, with only as many real minds as 2050’s computers can run. 1.8 × 10^24 FLOPS](https://simulation-hypothesis.com/builds/server-2050)[Beyond an Earth-mass computer Local Universe The Milky Way at atomic resolution, from the Big Bang. 7.0 × 10^85 FLOPS](https://simulation-hypothesis.com/builds/local)[Beyond an Earth-mass computer Universe Lite The observable universe at molecular resolution, with half of it left out. 5.8 × 10^91 FLOPS](https://simulation-hypothesis.com/builds/lite)[Too large to write as a number Full Quantum The observable universe as one wavefunction. The upper limit. off the scale](https://simulation-hypothesis.com/builds/full-quantum)[Beyond the Sun’s whole output Baseline Earth atom by atom since 1900, as a starting point for changing one dial at a time. 1.3 × 10^68 FLOPS](https://simulation-hypothesis.com/builds/custom)[Possible at national scale The Afterlife A world with no suffering, computed only when someone’s there. 10^18 FLOPS](https://simulation-hypothesis.com/builds/afterlife)