Thanasis Dinopoulos examines the "errors" of evolution from the cellular to the systemic level, emphasizing brain functions. Among the questions he raises are the following: Why is there a crossover between the digestive and respiratory tracts, causing us to choke while eating? Why did humans stand upright, and what problems arise from this upright position? Why is there a blind spot in the retina of the human eye? Why did the Boskops, the people with the large brains, disappear? Why do brain cells not regenerate? Why are perception and memory imperfect functions? Is forgetfulness a biologically useful mechanism? Is love a bittersweet "error" of evolution?

The author examines these and many other evolutionary problems, posing the tough question: Is there an all-knowing and all-powerful yet clumsy designer, or is humanity the product of a natural process, as suggested by Darwin's Theory of Evolution? After many years of laboratory experience, Thanasis Dinopoulos argues that humanity now possesses the scientific knowledge and social intelligence that will allow it to overcome the Darwinian weakness in understanding the concepts of evolution and natural selection.

With humor and calmness, the author argues that we are also products of the same process that produced every other form of life, a recognition of critical importance for the uncertain future of the planet and our survival as a species.