Existing in an un-simulated reality
This is similar to David Lewis&#x27;s modal realism, which says that every possible world is real:<p><a href="https:&#x2F;&#x2F;en.wikipedia.org&#x2F;wiki&#x2F;Modal_realism" rel="nofollow noreferrer">https:&#x2F;&#x2F;en.wikipedia.org&#x2F;wiki&#x2F;Modal_realism</a><p>There isn&#x27;t really much of a connection between this and Bostrom&#x27;s simulation argument. The simulation argument is about calculating the probability that we live in a simulated universe based on certain assumptions about human behavior and technological development. Bostrom&#x27;s argument doesn&#x27;t make any metaphysical claims other than assuming that consciousness is substrate independent.<p>I don&#x27;t buy into metaphysical theories that claim to deduce the existence of worlds outside our own based on armchair reasoning. We know that the physical universe exists and we can explain everything that we experience in terms of quantum field theory and general relativity. Any theory that wants to challenge this view of the world needs to modify those existing theories, or design an experiment that shows why they aren&#x27;t adequate to explain reality.