Final answer:
The complexity of a text can be influenced by factors such as citations and multi-dimensional characters.
Step-by-step explanation:
The complexity of a text can be influenced by various factors. In this case, the complexity of the text is likely due to the use of citations, which require the reader to cross-reference and understand the sources being referenced. Additionally, the use of characters in the context of literature can contribute to complexity if they are multi-dimensional and require careful analysis. However, in this specific case, dating systems are unlikely to be a significant factor in making the text complex.