In The Magic of Reality: How We Know What's Really True, Richard Dawkins explains his view of how people can determine what is real and what is mythical or imaginary. Most of the chapters discuss a topic of scientific study, such as atomic physics, biological diversity, and cosmology. Dawkins usually begins by presenting mythological explanations (and some biblical explanations) of such phenomena and then presents an alternative explanation from the perspective of naturalism—a worldview which rejects a supernatural reality and asserts that all reality can be explained by appealing to natural laws and processes.
In chapter one, Dawkins explains two means by which people can know what exists. First, people use direct observation through the five senses. Sometimes this requires the use of aids, such as microscopes and telescopes, and some phenomena require indirect observation, such as atoms. He says that scientists will continue to learn more about such topics and concludes: