It doesn’t necessarily have to be more complex, if it is infinite.
Just like there are exactly as many rational numbers between 0 and 1 as there are in total. The same works for real numbers.
We don’t know if our universe is infinite. There is reason to believe that spacetime might be discrete. And we don’t know if the universe is infinite, or if the observable universe is all there is, and we just happen to be approximately in the middle of it.
But if the universe is dense, and if the technology was advanced enough, simulating an equally complex should be possible.
It doesn’t necessarily have to be more complex, if it is infinite.
Just like there are exactly as many rational numbers between 0 and 1 as there are in total. The same works for real numbers.
We don’t know if our universe is infinite. There is reason to believe that spacetime might be discrete. And we don’t know if the universe is infinite, or if the observable universe is all there is, and we just happen to be approximately in the middle of it.
But if the universe is dense, and if the technology was advanced enough, simulating an equally complex should be possible.
No, you can’t simulate 1 particle using only 1 particle.