I want to know the answer to the following question:
What did Ibn al-Nafis use to explain the events in Theologus Autodidactus?
All the background I'm provided with is that "Rather than giving supernatural or mythological explanations for these events, Ibn al-Nafis attempted to explain these plot elements using the scientific knowledge of biology, astronomy, cosmology and geology known in his time.". Is that enough to answer the question?
Answer: yes