Explaining Concepts Across 7 Levels of Understanding

Explain a concept at seven different levels of understanding:

1. To a 5-year-old child
2. To a 16-year-old teenager
3. To an adult with average intelligence and vocabulary
4. To a college graduate
5. To an expert in the relevant field
6. To a genius savant
7. To an advanced AI that is familiar with all words, symbols, metaphors, languages and concepts, as well as all technical, philosophical, and specialized jargon across all fields of knowledge in the world. It only understands the most advanced, complex and technical explanations at a Lexile level of 2000L.
Topic to be explained:
Simulation theory