this post was submitted on 10 Sep 2023
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[–] [email protected] 3 points 2 years ago (19 children)

there is this theory that in an endless or nearly universe, it is basically given, that some species will invent a computer that is capable of simulating an universe, which in turn will have a simulation going, because the same rules apply

My main gripe with simulation theory is that this claim just seems... false.

First off, it's not possible to create a simulation of equal complexity to the host universe, so each iteration would necessarily have to be smaller, and I would contend significantly so.

Even the wildest theoretical computers can't even simulate Earth, much less the universe.

[–] [email protected] 1 points 2 years ago (3 children)

Chances are whatever dimension is hosting our Universe server, is probably 4th or 5th dimensional.

Sorta how we can make a detailed 2D simulation like Dwarf Fortress. Our 3D universe might as well be somebody's Super Nintendo.

[–] [email protected] 0 points 2 years ago (2 children)

Chances are that we're not in a simulation, but you're right that for our universe to be simulated, the host universe would need fundamentally different physics.

Even then, I feel like you're underestimating the scale of the universe. Dwarf Fortress is laughably simple compared to a real universe. It's a toy. You'd need something more than a couple extra dimensions for our universe to be at all comparable to that.

[–] [email protected] 1 points 2 years ago (1 children)

To be completely honest, dwarf fortress is way more complex then tic-tac-toe.

[–] [email protected] 1 points 2 years ago* (last edited 2 years ago)

Compared to a universe, they're equally complex.

Tic tac toe is on the order of 10^2 bytes.

The Dwarf Fortress install is 10^8.

The number of particles in our universe? 10^80

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