True it is more complex. The way way people use it? Not complex. Look at half of the forums? A dream? A dream is a major hallucination. a fragment in your mind. You cannot taste in a dream, hear? If you can then its something happening to your surroundings as you sleep. The way we use our own brain. Maybe you're right, maybe we are figments of your imagination or someone who does not exists, but I see no reason to believe that.