Review my mental model (where am I confused?)

I'll explain {{topic}} in my own words. Tell me where my mental model is broken.

My current understanding:
{{paste your explanation — write it as if teaching someone else}}

Walk me through:
1. **What I got right** — things to keep
2. **What I got wrong** — actual factual errors, with corrections
3. **What I'm fuzzy on** — places where my words sound right but the underlying model is shaky
4. **What I'm missing entirely** — important pieces I didn't mention that would change my understanding
5. **The one question** that, if I can answer correctly, proves I really get it. If I can't, it shows what I still need to learn.

Be direct. If my model is mostly wrong, tell me. Politeness is unhelpful here.