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According to some, assuming it's even possible to fully simulate a universe to the degree that life in it can't tell, then there should be multiple simulations running, so there would be more sim-universes than real ones, and odds would be high that any given universe you find yourself in would be a sim.
Personally I don't buy it, I think if we were in a sim the laws of physics would have to be easily computable (they aren't, see gluons) and I think it would take the computing power of an entire universe to simulate one of similar complexity at anywhere close to reasonable speed. (Note how emulators and virtual machines can only emulate a weaker system then the host system, at least at speeds comparable to native hardware)
Exactly. Liu Cixin's trilogy Remembrance of Earth's Past has some great writing on different technological levels between alien species and how one could influence a lower tiered civilization by using physics.
Thanks for typing out what i was gonna say.
I am agnostic about simulation theory. If an advanced enough “something” can create a simulation undistinguishable from the lives we experience now then i would bet that we do live in one. But thats a big if and goes a bit further than one where life cant tell. (A simulated single cell organism is miles of from simulated mammals and society)
This ties back to the mediocrity principle. If there are 10 billion people living on Earth, but 10 quadrillion living in simulations, the chances for you to live in the latter is much higher.
Along goes the simulation argument by Nick Bostrom. If simulation is possible, and practiced, we likely are simulated ourselves.
Isaac Arthur) noted that housing a population in a simulation is much more efficient than doing so physically. It seems like a convergent choice for powerful civilizations which want to maximize the life supported by fading stars (or energy potentials in general).
Two objections:
Those are some really interesting points, thanks for your input.
How much would speed matter to a simulated lifeform. Ive often wondered if time would suddenly stop and then continue we would probably just experience it like it didn’t stop.
but time is relative. we might very well live in a simulation that takes a minute of “external time” to compute a single tick of our time. we just can’t experience it.
I'm not really a believer of the whole simulated universe theory, but I find your arguments against it weak.
You're basing what is and isn't easily calculatable off of our experiences. Same with "complexities of the universes". However, if our world is indeed simulated, there's no telling what the host universe is like. It might have crazy different math and be far far more complex than ours. Us trying to understand it would essentially be an excercise in futility.