what do physicists mean when they say we potentially live in a simulation?

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I get what a simulation is, at least in the very literal sense. What I’m experiencing feels like reality, it would have to, it’s all any of us have ever known. But what would it mean for us if we truly lived in a simulation? Can it just be turned off and we cease to exist? If we found out we did live in one, how could it change our reality? How do we even hypothesize such a thing? I have zero background in physics just so we’re at an understanding of my physics understanding.

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Anonymous 0 Comments

Its a statement that emerges from technological advances and statistics, not physics.

The thought process goes something like this: we as humans have existed for a very short period of time on a universal scale. We have made very fast and very big advancements in computing and recently AI. If this technological advancement continues and we dont destroy ourselves, it is likely that we will be able to simulate a universe with all of its laws at some point in the future – there is nothing really stopping us from doing so in theory, just computational power and energy constraints, both of which can be solved with time.

Now the simulation itself would – at some point – also create a simulation of a universe and so on.

If WE can make a simulation of a universe, that would mean that

A) Our universe is “the original” among and infinite number of simulated universes

Or

B) One of the many simulations

Option B is simply much more likely statistically.

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