Consequently, readers need to keep an open mind regarding each of the theories discussed. Some can be quite radical. As scientists, you may disagree with a theory but you should base that disagreement on clear and convincing evidence, not rhetoric. Pertinent theories should never be discarded simply because one disagrees. Learning takes place through understanding and being open to all points of view. In this book, strong evidence is utilized as pillars to support our —ndings. It is necessary, therefore, to have an open mind, even to those who try to silence and disregard our work. Of course, we fully understand that the tactics used against us are typical and to be expected when the truth we expose hits home.