That argument doesn't hold much water for me. All 3D games simulate a space larger than a computer, while running on a computer. And there's no reason why simu

That argument doesn't hold much water for me. All 3D games simulate a space larger than a computer, while running on a computer. And there's no reason why simulation requires everything to be simulated at the same time. Stars could be modeled as point masses, and only calculated in more detail when someone looks at them. Take a look at the mandelbrot set https://math.hws.edu/eck/js/mandelbrot/MB.html https://math.hws.edu/eck/js/mandelbrot/MB.html infinite fractal complexity, shown using limited space + time.