... taste buds and sending electrical impulses along the nerves leading from your tongue to your brain. When those impulses reach the brain they produce further physical changes there and then finally you taste the tastes of chocolate. If a scientist looked directly at your brain whilst you were eating the bar then all he would see was a mass of grey neurons. However, if he used electronic equipment then he would be able to detect the complicated physical processes that occurred as a result of eating the chocolate. But he would not be able to find the actual taste of chocolate in your brain , because this experience is locked inside your mind in a way that makes it unobservable by anyone else. Suppose he was crazy enough to think that he could observe your experience of tasting the chocolate by licking your brain. First of all, its incredibly unlikely ...

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