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John Adair's 100 Greatest Ideas for Smart Decision Making by John Adair

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Thirteen Greatest Ideas on How Your Mind Works

Idea 1: Inside your head

Every head is a world.

Cuban proverb

The physical base of your mind is of course your brain, the grey matter housed in your head. Your brain is composed of about 10,000 million cells. In fact, it has more cells than there are people on the face of the earth! Each one of those cells can link up with approximately 10,000 of its neighbours, which gives you some 1 plus 800 noughts of possible combinations.

Amazing, isn’t it? But there is more:

  • At any one moment your brain is receiving about 100 million pieces of information through the ears, eyes, nose, tongue and touch receptors in the skin.
  • It consumes about 10 watts of power per day. If scientists tried to build a brain of ...

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