Write each answer and mark it evidence or assumption
When it may fit: Plans mix facts with hopes.
Evidence needed: A one-page list of the five groups of questions.
Trade-off: Honest labeling can be uncomfortable.
Create a Business Brief
The Questions Every Founder Should Answer Before Starting a Business
A short list of honest questions, answered with evidence and not hope, does more to prevent expensive mistakes than a long business plan.
1. The business problem
If you had to explain to a skeptical stranger why this business will work, what would you say, and what could you show them?
Founders usually have answers to the questions they enjoy: what the product is, why it is good, what the brand should feel like. The questions that decide whether a business survives are less comfortable: who exactly will pay, how do I know, what does it cost me to serve them, and how long can I last if I am wrong.
Answering those questions early, in writing, with a note of what is evidence and what is assumption, is cheap. Discovering the answers after spending savings is not.
2. What the evidence can reveal
The questions fall into five groups, and each one can be tested to a different degree:
- Information gap The customer: who they are, where they can be reached and what problem they actually have.
- Information gap The proof: what real people have done, such as spent time, paid a deposit or signed a commitment, rather than said.
- Calculated The economics: the price, the direct cost of each sale, the fixed costs and the volume needed to break even.
- Calculated The cash: how much money the business needs, and how long it lasts if sales are slower than hoped.
- Information gap The founder: whether the owner can live on what the business will pay, and for how long before it pays anything.
Only the economics and cash questions can be calculated from your own numbers. The others require conversations and observation, which is why the experience below separates evidence from assumption.
3. Investigate the problem
The experience below starts with a sample idea, a neighborhood meal-prep service, entered the way a founder would. Illustrative It assumes a price of $62 a sale, a direct cost of $31, fixed costs of $11,600 a month, a $45,000 startup investment and a $30,000 cash reserve. It also records six customer conversations, no pre-sales and two competitors researched.
Calculated The model flags the gaps before it flatters the numbers. Demand evidence is rated thin, and there is no commitment from any customer to pay the assumed price. The economics themselves look workable: each sale contributes $31, break-even is about 374 sales a month, and in the expected case cash falls to about $12,700 in month 4 and recovers.
Hypothesis A founder who had only the plan would feel ready. A founder who also had this evidence table would know the plan rests on one unproven assumption, the price, and would test it first. Information gap What the questions cannot do is answer themselves: the table shows what is missing, not what the answers are. APIS supplies no market data here and will not invent any.
4. Explore the interactive experience
Investigate it yourself.
Business Idea Investigator: a guided investigator that separates evidence from assumptions, a startup financial simulator with three cases, scripted answers from APIS, and a printable preliminary assessment, all running on what you type.
The experience below starts with a sample idea. Replace it with your own, or clear it. Nothing you type leaves your browser, and APIS supplies no market data here.
- Read the Evidence status table. Which questions are marked as thin or missing?
- Ask APIS “What should I validate first?” and “What must be true for this business to work?”
- Replace the sample with your own idea and see which answers you cannot yet give.
5. Evaluate possible solutions
Answering the questions is a sequence of small tests, ordered by cost.
6. What leadership should do next
Questions to answer
- Who exactly is the customer, and what is their problem?
- What have they done to show they will pay?
- What do break-even and the worst case look like?
- How long can I last, and can I live on this income?
Data to gather
- Notes from customer conversations
- Quotes for costs, not estimates
- Competitor prices and offers
- Personal financial runway
Steps to take
- Answer each question in writing.
- Mark evidence versus assumption.
- Test the weakest assumption first.
- Decide to proceed, revise or stop.
7. Engage Two Pillars
Turn Your Business Idea Into a Structured Plan
Two Pillars can help founders evaluate business concepts, research markets, build financial models, plan operations and coordinate the professional guidance a new business needs. A good first step is a preliminary opportunity assessment that organizes your answers, shows which are evidence, and sets out what to validate first.
Sources and data notes
- The organization, its figures, and every number in this article and its interactive experience are synthetic and illustrative. They are not real data, a benchmark, or a forecast.
- Reviewed October 2026. This article describes an approach to investigation. It does not replace review by qualified professionals, and it is not legal, tax or financial advice.