Prompt library
Outline a defensible market sizing
Two independent estimation paths that must roughly agree is the standard defense against garbage-in sizing, and explicit low-base-high ranges surface uncertainty instead of hiding it in one confident number. The labeled-placeholder rule keeps invented statistics out of your deck.
ResearchPlan
Last reviewed July 17, 2026
The prompt
Build a market-sizing model outline for {{market}}.
Deliver:
1. Two independent estimation paths: top-down (from published market or population figures) and bottom-up (from unit economics: buyers x adoption x price). Define every variable in each chain.
2. For each variable: the plausible low, base, and high values, and where a real number could be sourced (census data, industry reports, app-store counts, job postings).
3. Compute TAM, SAM, and SOM for the base case, showing arithmetic step by step.
4. State which single variable the result is most sensitive to.
5. List the 3 assumptions a skeptical investor would attack first, and what evidence would defend each.
Where you do not know a real figure, use a clearly labeled placeholder; never present an invented statistic as sourced.Run in idaptOpens a new chat with the prompt prefilled. Nothing sends until you press send.
Fill in the variables
| Variable | What it is | Example |
|---|---|---|
| {{market}} | The market to size | AI note-taking tools for medical clinics in Europe |