Dr. Nikos A. Salingaros discusses the most recent developments applying neuroscience and visual diagnostics to inform design. Topics covered include: fractals, eye-tracking tools, visual attention scanning software, biophilia and the biophilic healing index, ornament and its implications for developing childrens' intelligence, and other crucial topics. We can now predict positive (or negative) healing effects that spaces and structures may have on users. Those are due to certain geometrical features of the built environment, which can be estimated before something is built. Anticipating people’s biological and unconscious responses to a new building or urban space is a radically new tool that links design to public health.