What is simulation theory?
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Are we the purposeful content of someone else’s experiment or entertainment, rather than beings with independent origins?
Summary
Simulation theory is usually presented as a metaphysical possibility: reality as experienced could be generated by an immensely advanced computer system. Bostrom’s argument does not straightforwardly claim to have proved this; it says that at least one of three propositions must hold, with the simulation conclusion following if the other two are false and relevant assumptions about consciousness and observer-selection are accepted.
- The hypothesis proposes that experienced reality is a simulated world, potentially containing conscious beings implemented through computation.
- Bostrom’s trilemma says humanity may go extinct before becoming posthuman, posthuman civilizations may rarely run ancestor-simulations, or we are probably living in one.
- The argument depends on the possibility that consciousness can arise in sufficiently detailed non-biological computational systems.
Source mix
7 sources
- 1 Reference & archives
- 6 Other / unclassified
Deeper Insight
Critical analyses accept that simulated reality is logically conceivable but challenge the move from what advanced civilizations might be able to create to what we ourselves are. They also argue that an embedded observer may lack evidence distinguishing an implemented simulation from a non-simulated universe, making the hypothesis epistemically underdetermined rather than an empirically confirmed cosmology.
- One critique argues that Bostrom’s formal trilemma does not entail that we are simulated; it says the conclusion requires an additional, disputed inference about our reference class.
- A critical analysis argues that the hypothesis faces challenges from physics and logic and that popular appeals to quantum mechanics do not by themselves establish simulation.
- Another analysis concludes that evidence of computational structure would not necessarily demonstrate that the universe was created by an external simulator.
Sources · 9
- 1 Reference & archives
- 6 Other / unclassified
What do these mean?
- Reference & archives. Encyclopedias and web archives: a place to look something up or a stored copy, not an original source.
- Other / unclassified. A site we have not classified yet. This says nothing good or bad about it.
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Bostrom's Simulation Argument is a Non-Sequitur
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The Simulation Argument FAQ
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## The Simulation Argument FAQ (2025) Nick Bostrom version 2.0 [simulation-argument.com] 1. What is the simulation argument? 2. Do you really believe that we are in a computer simulation? 3. Is the simulation argument a variant of Descartes’ daemon or the brain-in-a-vat argument? 4. If we are in a s
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