In principle, the elements of space and time cannot be measured. Therefore, the following question arises: How are reality and space-time related to each other? In this book, it is argued on the basis of many facts that reality is not embedded but projected onto space and time. We can never make statements about the actual reality outside (basic reality), but we can "only" form pictures of it. These are pictures of the same reality on different levels. From this point of view, the "hard" objects (matter) and the products of the mind are similar in character.
Space-Time Conceptions; Is the World Embedded in Space?; Pictures of Reality; Levels of Description, Levels of Reality; Examples of the Principle of Level-Analysis; Diversity of Pictures; Other Spaces, Other Particles; Levels of Reality of Mach's Principle; The Asymptotic Convergentism; Substitution Instead of Successive Refinement; Pictures of the "Reality in Itself".