What is Scratchpad / Extended Thinking? Why does it exist? Where does it appear in Chain-of-Thought & Reasoning?
Draw or describe a visual model of Scratchpad / Extended Thinking. What does it look like conceptually?
Try Scratchpad / Extended Thinking on a real example. Vary the inputs and observe what changes.
How is Scratchpad / Extended Thinking different from related concepts in Chain-of-Thought & Reasoning? What are the trade-offs?
Explain Scratchpad / Extended Thinking in plain language using an analogy. Could a non-expert follow it?