Justine,
I go a bit further than that. If the brain were simulated on a computer then that computer would have the same soul. Just think what would happen to you if you replaced your nerve cells by artificial ones such that brain function is not affected at all.
I see the soul as a computer program. It now runs on a brain. If you simulate that brain using a computer, then that computer will run the same program.
The point I was making in that blog posting is that the qualia, i.e. the things we experience, are in a certain sense fundamental things, even though they can be defined in terms of brain processes.
Suppose you run a program that simulates the solar system. Then you can think of the planets being at certain positions relative to each other as fundamental things on the level of the algorithm that is running. The algorithm is implemented by the hardware and ultimately everything can be reduced to the state of transistors.
If we compare the brain to the computer simulating the solar system, then I would say that the neurological processes have to be compared to the processes at the level of the transistors in the computer. The qualia are abstract objects that exist in the virtual world that the computer is calculating, in this case the solar system.
Similating the brain to copy the soul on a computer is similar to running the solar system program on another program, not by compiling the same software on the other machine, but by simulating on the other computer how first works, down to level of the transistors, when it is running the program. That would, in principle, work but it is just a cumbersome way to implement the same program.
