# Physics and Philosophy ## The Nature of Reality The question of the nature of reality is one that has occupied philosophers and scientists for millennia. ### Key Concepts 1. **Determinism**: The idea that all events, including moral choices, are completely determined by previously existing causes. 2. **Indeterminism**: The concept that some events are not caused, or not caused deterministically. > "God does not play dice with the universe." - Albert Einstein Markdown formatting should be handled gracefully by the text extractor.