Every business idea begins with assumptions. You believe customers have a specific problem. You assume they’ll pay for your solution. You expect certain technologies or partnerships will be available to you. But without testing these assumptions, you’re building on an unstable foundation that could collapse at any moment.
Rashmi Sinha, founder of SlideShare (acquired by LinkedIn for $119 million), put it perfectly:
“A founding vision for a startup is similar to a scientific hypothesis”.
The question is: are you treating your assumptions like scientific hypotheses that need rigorous testing, or are you treating them as established facts?
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The Hidden Danger of Untested Assumptions
Most founders don’t lack confidence – they lack evidence. In our work with early-stage companies at M Accelerator, we consistently see smart, capable entrepreneurs who can articulate brilliant visions but haven’t systematically identified and tested the critical assumptions underlying their business models.
The result? Months or years spent building products based on flawed premises, only to discover fundamental misalignments with market realities when it’s too late to pivot efficiently.
Creating Testable Hypotheses: The First Step to Validation
Converting vague assumptions into clear, testable hypotheses is the critical first step in reducing business risk. A well-formed hypothesis has three essential characteristics:
- Testable: It can be proven true or false through evidence
- Precise: It specifies what success looks like with clarity
- Discrete: It isolates one distinct thing you want to investigate
Consider these examples:
Weak assumption: “Millennials will like our science subscription box.”
Strong hypothesis: “Millennial parents with kids ages 5-9 will pay $15/month for curated science projects that match their kids’ education level.”
The difference is dramatic. The first statement is vague and difficult to validate or invalidate. The second provides specific parameters that can be definitively tested through experiments.
The Hypothesis Creation Process
To systematically identify your business assumptions and convert them into testable hypotheses:
- Start with your business model canvas: Examine each component of your business model to identify embedded assumptions
- Use the “We believe that…” format: Write out assumptions beginning with “We believe that…” to make them explicit
- “We believe that customers will pay $X for our solution”
- “We believe we can acquire customers for less than $Y”
- “We believe that we can secure partnerships with Z companies”
- Create anti-confirmation hypotheses: Deliberately create some hypotheses designed to disprove your assumptions to counter confirmation bias
- “We believe customers won’t pay more than $X for our solution”
- Specify the metrics: Clearly define what evidence would confirm or refute each hypothesis
The Assumptions Map: Prioritizing What to Test First
With limited time and resources, you can’t test everything simultaneously. The Assumptions Map is a powerful tool to prioritize your testing efforts based on two key dimensions:
- Importance: How critical is this assumption to your business model?
- Evidence: How much concrete evidence do you already have?
Plotting your hypotheses on this matrix creates four quadrants:
Top Right (High Importance, Low Evidence): These are your most critical hypotheses to test immediately. If these assumptions are wrong, your entire business model collapses.
Top Left (High Importance, High Evidence): Verify that your evidence is robust and reliable.
Bottom Right (Low Importance, Low Evidence): Deprioritize these for later testing phases.
Bottom Left (Low Importance, High Evidence): These require minimal immediate attention.
Case Study: How Dropbox Tested Critical Assumptions
Before building their cloud storage solution, Dropbox faced an important question: Would users actually want and use their product? Rather than investing in development immediately, founder Drew Houston created a simple 3-minute video demonstrating how the product would work.
This video, posted on Hacker News, generated 75,000 signups for a waitlist for a product that didn’t yet exist. This simple experiment validated their core desirability hypothesis at minimal cost, giving them confidence to invest in building the actual product.
By identifying their riskiest assumption (user interest in their solution) and designing a focused experiment to test it, Dropbox avoided potentially wasting resources on a solution without proven demand.
The Value of Negative Results
When testing hypotheses, disconfirmation is just as valuable as confirmation. If your experiment reveals that a critical assumption is flawed, you’ve gained crucial insight that allows you to pivot before significant resources are wasted.
Consider it this way: would you rather discover a fundamental flaw in your business model after spending $5,000 on experiments or after investing $500,000 in product development?
Implementing Hypothesis Testing in Your Startup
Here’s a practical approach to get started:
- Schedule a team session to identify assumptions across your business model
- Convert at least 10-15 assumptions into properly formed hypotheses
- Use the Assumptions Map to identify the 3-5 most critical hypotheses to test first
- Design appropriate experiments for each priority hypothesis
- Document your testing plan with clear success metrics
Remember that hypothesis formation isn’t a one-time activity. As you learn from experiments and refine your business model, you’ll continually generate new hypotheses requiring validation.

Moving From Guesswork to Evidence-Based Entrepreneurship
By transforming vague assumptions into testable hypotheses, you shift from opinion-based to evidence-based decision making. This methodical approach dramatically increases your chances of building a business that addresses real market needs in a viable way.
At M Accelerator, we’ve seen this hypothesis-driven approach help founders avoid costly mistakes and focus their limited resources on the most promising opportunities. The most successful entrepreneurs aren’t those with the most conviction in their ideas – they’re those most committed to testing their assumptions rigorously.
Join our Founders Meetings to learn how M Accelerator can help you identify your critical business hypotheses and design effective experiments to test them. Join us!




