Even if you manage to replicate 99.9% of someone's brain the 0.1% difference might give you huge differences.
But they might replicate social tendencies and trends based on this kind of technology, but we probably won't see this in the current century
Its impossible I tell you, there is too much random quantum fluctuation in a brain to copy it.
Its like cracking infinite passwords at once just to read the information from there.
You have to be a God to do this.
It`s more likely that a meteor hits the earth and we all die.