This essential should serve as an introduction for a contemporary public discussion on genetic engineering. Genetic engineering affects us all in many areas and we must dare to think more colorful and further. In fact, the complete genetic material of viruses and bacteria can already be chemically produced and "brought to life". With genetic surgery, medicine is at a crossroads: do we want to treat hereditary diseases or "repair" them genetically? And the analysis of thousands of human genetic material reveals information that is related to complex diseases, but also to characteristics such as intelligence. How should we use this knowledge? The question is hardly whether we want genetic engineering, but rather how we use it.