4b: The human brain is different from a computer for one main reason, how it possesses information. A computer can only deal with concrete ideas, being able to handle abstract ideas only by the programmer tweaking them to make them concrete. This is read by recognizing patterns of on and off switches. Each pattern means a different thing. So if something goes wrong the whole program shuts down.
The brain can processes just about any kind of data. This is because the way data is processed is basically just you neurons arguing about the topic and acting upon their favorite answer. this is a very versatile system that will always have flaws in its reasoning, but will never break down. This is because although it is inaccurate, it can handle everything.
So if all the neurons in a human brain were replaced with identical synthetic ones, it would still be human.
