Originally Posted by Steve Jordan
Sure, a brain can be called a "processing device." But its similarity to a machine processor ends there. Just as 2-dimensions are vaguely similar to but so incredibly limited in comparison to 3-dimensions, so the ability to count numbers that is the basis for all machine intelligence is vaguely similar to, but incredibly limited in comparison to, the way the human brain operates. In fact, calling a brain a "processor" at all is a lot like calling the International Space Station a "cave."
A brain and a machine can no more be directly compared to each other than a wheel and a wing can be directly compared to each other. Although both can do much the same tasks, they go about it in markedly different ways.
So let me rephrase:
Idea (Output) = Input In + personal individual history + social surrondings + a bit of random luck + work in.