calculation and consciousness and the unconscious mind:
the human mind is not merely an observer and audience of its surrounding world, it is also able to think about what may be purely abstract and theoretical, it can process information in order to calculate a result. so often, a person judged to be most intelligent, is someone who is a powerful calculator, so to speak.
whatever it is in the mind that calculates, is it truly only an aspect of consciousness? or posit that the calculating component might be something based mostly in the unconscious mind. indeed, when we concentrate, think hard, conscious thoughts merely follow the workings of the calculating unconscious mind.