What is known and not known?

What is known encompasses established facts, theories, and data that have been verified through observation and experimentation, such as scientific principles and historical events. What is not known includes uncertainties, unexplored areas, and questions that remain unanswered, such as the nature of dark matter or the full implications of consciousness. The boundary between known and unknown is dynamic, as new discoveries can shift our understanding and reveal previously hidden complexities. This interplay drives scientific inquiry and philosophical exploration.