What is Vector Index? Why does it exist? Where does it appear in Vector Database?
Draw or describe a visual model of Vector Index. What does it look like conceptually?
Implement Vector Index from scratch in Python. Keep it minimal — just enough to see it work.
Try Vector Index on a real example. Vary the inputs and observe what changes.
How is Vector Index different from related concepts in Vector Database? What are the trade-offs?
Explain Vector Index in plain language using an analogy. Could a non-expert follow it?