"Philosophical boundaries" refer to the limits or constraints within which philosophical inquiry and discussion occur. These boundaries can be defined by various factors, including cultural norms, historical context, and the specific frameworks of different philosophical traditions, such as Western philosophy or Eastern philosophy. They help delineate what is considered acceptable or relevant in philosophical debates and can influence the questions that philosophers choose to explore. These boundaries can also evolve over time, as new ideas challenge existing paradigms. For instance, the emergence of existentialism and postmodernism has pushed against traditional boundaries, prompting deeper examination of concepts like meaning and truth. Understanding these boundaries is essential for grasping the dynamics of philosophical discourse and the development of new ideas.