Try imagine it like you fall asleep and when you wake up, your physical body is gone and what you operate on is a virtual body, just like a virtual machine for OS-es.
Most neuroscientists believe that there's much more to the human brain than that - there are things going on in our brains like interactions between close synapses using quantum effects. Perhaps we could model that if we understood it better, but the reality is we don't, so we can't really predict whether or not it's something we can copy.