What Do Scientists Know About the Brain?

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The answer is a lot more than we used to and a lot less than we need to. There are about as many cells in the brain as there are stars in the Milky Way galaxy. That's a colossal number, and the fact that we even know that is progress, but as to how they are connected up, how they function, some of it is almost more grisp for philosophers than it is for scientists. What's the difference between the mind and the brain?

What is thought, is it a set of electrical impulses or is there something deeper than that? The more you work on the brain and things connected with functions of the brain, and the way it expresses itself at normal living and in disease, the more you realise and you blur the line between science and literature, science and philosophy. I think the answer is, we respect the brain a lot more than we used to, we really understand what an immensely complicated, remarkable organ it is, but we also know we're awfully ignorant.

Socrates said, the one thing I know for sure is that I know nothing, I feel like that.