--- title: "Featured scenario · Simulation Hypothesis" url: https://simulation-hypothesis.com/today description: "One scenario a day, picked by the calendar from a pool of setups. You get its computing total, its ethical judgement, and a link to change it in the sandbox." license: https://creativecommons.org/licenses/by/4.0/ credit: "Ross Allan Dahl, Simulation Hypothesis (simulation-hypothesis.com)" --- Featured scenario · 2026-10-23 110 of 120 # Inner life at every rung · today’s universe Open in the sandbox ▸ One setup is picked each day from a pool of 120, based on the date. Everyone sees the same one on the same day. Required computing power rough 6.0 × 10^33 FLOPS Our computers could run this between 2109 and 2144, if steady growth runs a fifth faster or slower (2123 at the central rate). [The countdown ▸](https://simulation-hypothesis.com/countdown) More than every computer on Earth put together, by a factor of about 10^13. Computer sizerough 10¹³ × every computer on Earth Servers, personal computers, phones and consoles added together. Feasibility Beyond all existing hardware More than every computer on Earth combined. Universe-computerstextbook 7.4 × 10^-71 One universe-computer is every kilogram in the observable universe computing at Lloyd’s bound. Power draw, Landauer floortextbook 17 TW The thermodynamic minimum for flipping bits at room temperature. The best real hardware uses about five billion times more energy than that. A fraction of a national power grid, at the thermodynamic minimum for erasing bits. On every computer on Earthrough 189.4 thousand years per second How long it takes, on a clock, to compute one second of simulation on all of humanity’s computers, \~10^21 FLOPS. 189.4 thousand years of all Earth’s computing for every simulated second. World actually computedwild guess 100% 100% of the mass is watched by 101 observers. The observation dial sets how much of the remainder is computed at the full floor. ## Report card Instance report INNER LIFE AT EVERY RUNG Settings Scale One room Matter floor Tissue Lobby Real and scripted minds Inner lives 6.0 × 10^30 · biophysical Computed 100% Time Branching, pruned, live from 3.8 × 10^9 yrs ago Slot A scripted character that detects the seams Computing needed 6.0 × 10^33 FLOPS Computer size 10¹³ × every computer on Earth Universe-computers 7.4 × 10^-71 Feasibility Beyond all existing hardware Judged, not measured The author’s reading. None of these changes the computing total. Suffering As found Free will Genuinely free Utilitarian divided Deontological leans for Virtue ethics leans for Existentialist leans for “Gave every nervous system an inner life. The minds barely change the total. The matter dominates: 6.0 × 10^33 FLOPS.” Two of these are rough and three are wild guesses, and each is tagged that way. Change any one dial and you get a different universe. ## In one line “Gave every nervous system an inner life. The minds barely change the total. The matter dominates: 6.0 × 10^33 FLOPS.” There’s a new one tomorrow. You can also browse the named scenarios: [all 9 of them](https://simulation-hypothesis.com/builds). Matter computingrough 10^15 FLOPS 10^7 tissue-sized units across room, each updated every 1 ms. Mind computingrough 6.0 × 10^30 FLOPS Sandberg & Bostrom 2008, level 5 6.0 × 10^30 minds, each computed as a biophysical model. Next to the matter, they’re a small part of the total. Inner liveswild guess 6.0 × 10^30 6.0 × 10^30 real minds. 0 organisms left as scenery. Operations so farrough 7.2 × 10^50 3.8 billion years on the clock, at 6.0 × 10^33 per second. History that is only storedrough 72.46% Computing begins 3.8 billion years ago. No humans are present at the start.