You know how it is, you believe something for so long, everyone agrees with you, all the books tell you it's true and then suddenly you have a blinding revelation - we've all been duped! You know like my gorilla mates were? (If you're not sure about my gorilla mates then you really need to read the book - we've got a great offer on at the moment!)

And you feel such a chump - how did I ever fall for that - the logic just isn't there - I must have been a fool. Let me explain.