tests/test_data/sample.md

# 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

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