How I Tested That

David J Bland

Testing your ideas against reality can be challenging. Not everything will go as planned. It’s about keeping an open mind, having a clear hypothesis and running multiple tests to see if you have enough directional evidence to keep going. This is the How I Tested That Podcast, where David J Bland connects with entrepreneurs and innovators who had the courage to test their ideas with real people, in the market, with sometimes surprising results. Join us as we explore the ups and downs of experimentation… together.

  1. APR 29

    Büşra Coşkuner | How I Test B2B vs B2C

    Summary In this episode, I’m joined by Büşra Coşkuner, a product management coach and trainer who helps teams move from project thinking to product thinking. We explore how she approaches product discovery and testing. From building zero-to-one products at Doodle to coaching teams across B2B and B2C environments, Büşra shares how to actually operationalize experimentation beyond just A/B tests. We also dig into how to test when you don’t have much data, how to combine qualitative and quantitative insights, and why many teams get stuck thinking they’re doing product work when they’re really just managing tickets. If you’re trying to build a stronger testing culture or just want to make better decisions this episode will challenge how you think about product metrics and experimentation. Takeaways Product transformation is a leadership decision - If leadership isn’t backing the shift from projects to products, it won’t happen, bottom-up enthusiasm isn’t enough. Most “product orgs” aren’t actually product orgs - Adopting Scrum and calling someone a product owner doesn’t mean you’re doing product, many teams are still just managing tickets. You can’t test what you can’t measure - Without proper data instrumentation, teams fall into a “build, build, build” loop instead of build–measure–learn. Metrics frameworks are a starting point, not the system - Pirate metrics (AARRR) or customer factory models help, but real insight comes from adapting them to your actual business model. Qualitative data is not optional - Quant tells you what is happening, qual tells you why. In low-data environments, qual becomes your primary signal. “No data” is usually an excuse - Even in B2B, you can extract directional insights, from sales teams, customer conversations, and patterns across feedback. A/B testing is over-indexed and often misused - Experimentation goes beyond A/B testing. Many teams default to it even when it’s impractical or irrelevant. Sometimes building is the test - For low-risk features, the fastest way to learn is to ship and observe behavior, treat the release itself as the experiment. B2B testing requires creativity, not scale - From sales-assisted experiments to prototype validation and even WhatsApp groups, testing in small markets is possible if you rethink the approach. AI changes the cost of being wrong - When building becomes cheap, you don’t always need heavy upfront validation, you can test the problem through the solution, as long as you’re willing to kill what doesn’t work. Guest Links LinkedIn: https://www.linkedin.com/in/busra-coskuner/Website: https://busra.co/ If your leadership team is about to make a big strategic bet, the real risk usually isn’t the idea, it’s the assumptions behind it that haven’t been surfaced yet. A Decision Sprint is a focused 6–12 week engagement where we extract, map, and test those risks so leaders can make a clear Commit, Correct, or Cut decision before major capital moves. Learn more or apply at precoil.com.

    51 min
  2. APR 15

    Gil Vaisman | How I Tested ADU’s

    Summary In this episode I’m joined by Gil Vaisman. He’s the founder of GoADU, a construction company focused on building accessory dwelling units. We explore how he went from a 15-year career in film editing to building a construction business that helps homeowners unlock equity and create new living spaces.  What started out as a personal project in his own backyard turned into a growing business built through trial, error, and constant iteration. Gil shares how he tested his way into the market, from helping friends navigate permitting to evolving into a guaranteed fixed pricing model. We also dig into how he qualifies customers, avoids costly mistakes, and thinks about what to test next in an industry that’s rapidly changing. If you’re trying to turn a personal pain point into something scalable, this episode is a great look at how testing can lead to a viable business. Enjoy my conversation with Gil Vaisman. Takeaways Great businesses often start as personal pain points - Gil’s ADU company emerged from building one in his own backyard and helping friends navigate the same confusing process.  Transferable skills matter more than industry experience - His background in film production translated directly into construction, both require coordination, budgeting, timelines, and managing complex teams.  Early traction came from education, not selling - In the beginning, most customers didn’t even know what an ADU was, growth required teaching the market before capturing it.  Trial and error built the real expertise - Navigating difficult permitting processes and making costly mistakes early on became the foundation for a repeatable, refined system.  Pre-qualification is critical in complex services - Gil now asks 20–25 upfront questions before taking on a client, ensuring alignment and reducing downstream risk.  Competing on price is a starting point, not a strategy - The business initially won work by being the cheapest, but evolved into a premium, top-20% offering focused on quality and service.  A strong value proposition can reduce industry fear - Guaranteed fixed pricing became a key differentiator, directly addressing customer anxiety around hidden costs and change orders.  Future innovation is constrained by feasibility, not demand - Customers clearly want faster, cheaper builds (prefab, SIPs), but adoption is limited by execution risk, expertise gaps, and inconsistent quality.  Guest Links GoADU: https://www.goadu.com/ Vaisman Construction: https://www.vaismanconstruction.com/ If your leadership team is about to make a big strategic bet, the real risk usually isn’t the idea, it’s the assumptions behind it that haven’t been surfaced yet. A Decision Sprint is a focused 6–12 week engagement where we extract, map, and test those risks so leaders can make a clear Commit, Correct, or Cut decision before major capital moves. Learn more or apply at precoil.com.

    31 min
  3. APR 1

    Bill Fienup | How I Tested a HardTech Innovation Center

    In this episode I’m joined by Bill Fienup. He’s the co-founder of mHUB, one of the world’s leading hardtech innovation centers, located in Chicago, IL. We explore how he went from building Nerf gun prototypes at MIT to creating a space where thousands of hardware founders can prototype, test, and scale physical products. What started out as a meetup group and a spreadsheet, grew into a full ecosystem with millions of dollars in equipment and billions of dollars in economic impact. Bill shares how to test hardware ideas without burning capital, why most teams over-focus on feasibility instead of desirability, and how to validate what people will actually pay for before you build. If you’re working on physical products, or funding them, this episode is a masterclass in how to test before you invest. Enjoy my conversation with Bill Fienup. Takeaways Start with the problem, not the solution. The biggest risk isn’t building something, it’s solving a problem that customers don’t care enough about to act on. Desirability and willingness to pay matter more than feasibility early. Teams often over-focus on building, but the real uncertainty is whether customers value the solution enough to pay. Test demand before investing in development. Simple experiments like landing pages or fake purchase flows can validate real interest before committing resources. Iterate in spirals, not stages. Move across desirability, feasibility, and viability repeatedly, increasing investment only as uncertainty is reduced. Avoid building the wrong thing the right way. Strong execution can’t fix a fundamentally misaligned product, validation must come before scale. Use competition as validation. Existing solutions signal real demand and confirm the problem is worth solving. Focus on the majority, not edge cases. Designing for the loud minority can increase cost and complexity without improving overall product-market fit. Community can be a powerful starting point. MHub began as a meetup and shared spreadsheet, showing how real user pain can evolve into a scalable ecosystem. Guest Links mHub’s Website: https://www.mhubchicago.com/ LinkedIn Profile: https://www.linkedin.com/in/fienup/ If your leadership team is about to make a big strategic bet, the real risk usually isn’t the idea, it’s the assumptions behind it that haven’t been surfaced yet. A Decision Sprint is a focused 6–12 week engagement where we extract, map, and test those risks so leaders can make a clear Commit, Correct, or Cut decision before major capital moves. Learn more or apply at precoil.com.

    35 min
  4. MAR 18

    Akvile Ignotaite | How I Tested a TikTok Pimple

    Summary In this episode I’m joined by Dr. Akvile Ignotaite, a data scientist and founder building AI-powered skin health technology used by more than 800,000 people around the world. We explore how her team combines data science, health tech, and creative marketing to rethink skincare for Gen Z and Gen Alpha. From building a vast skin care dataset to launching a TikTok influencer pimple called Pimsy that has almost 40k followers, Akvile shares how cultural insights and small tests drive their product strategy. We also get into the challenges of building health technology for younger audiences, how to test ideas across different global markets, and why treating skin as a health problem, changes how you design products and measure success. If you’re interested in experimentation and AI in health you’ll enjoy my chat with Akvile. Takeaways Start small and imperfect to learn faster. The team prioritizes quick MVPs, sometimes built in days, to test ideas before investing heavily in development, branding, or marketing. Customer language and psychology matter. The original millennial-focused “compliance app” failed because it sounded too technical; shifting to Gen Z language, emojis, and storytelling dramatically improved adoption. Meet users where they already are. Channels like TikTok became critical for reaching younger audiences, even though the team initially resisted the platform. Creative experimentation can unlock growth. The “Pimsy” influencer pimple character started as a small test and quickly grew to tens of thousands of followers, proving unconventional ideas can resonate strongly with audiences. Micro-learning can drive high engagement. A simple, quickly built “myths vs. facts” quiz feature created massive engagement and generated valuable behavioral data about user beliefs. User feedback is a competitive advantage. Hiring a developer who criticized the Android experience highlighted the importance of listening closely to real user complaints and improving where customers actually are. Cultural assumptions can mislead founders. Expanding into India revealed how preconceived ideas about markets, healthcare practices, and culture can be wrong, reinforcing the need for curiosity and humility. Structured programs don’t always fit real user behavior. Highly designed 6- or 8-week skincare programs failed because users resisted rigid routines, showing how human behavior often breaks logical product design. Gen Z and Gen Alpha are forming a global digital culture. The app’s success without localization suggests younger generations increasingly share common digital behaviors and language across regions. Guest Links System Akvile: https://systemakvile.com/LinkedIn Profile: https://www.linkedin.com/in/dr-akvile-ignotaite/Pimsy TikTok: https://www.tiktok.com/@i.am.pimsy If your leadership team is about to make a big strategic bet, the real risk usually isn’t the idea, it’s the assumptions behind it that haven’t been surfaced yet. A Decision Sprint is a focused 6–12 week engagement where we extract, map, and test those risks so leaders can make a clear Commit, Correct, or Cut decision before major capital moves. Learn more or apply at precoil.com.

    36 min
  5. MAR 4

    Jim Morris | How I Test My Teaching Process

    In this episode I’m joined by Jim Morris.  We chat about the wake-up call that pushed him from building first to testing first. Jim and I discuss loyalty programs no one wanted, roadmaps filled with sequenced risk, AI prototypes that hallucinate and the uncomfortable reality that confidence often replaces evidence. We also dig into something deeper: why smart teams ignore data, why leaders fall in love once an idea hits the roadmap, and why testing isn’t about better UX,  it’s about real value. Jim shares how he even tests his own teaching process for students at Berkeley. Because as he puts it: “We can build stuff. But if people don’t use it, we’re just creating product debt.”Enjoy my conversation with Jim Morris. Takeaways Testing is crucial to ensure product effectiveness and user engagement. Data analysis can reveal the true usage of product features. Mindset plays a significant role in how product ideas are perceived and developed. Not all ideas will succeed; testing helps identify the viable ones. User motivation is key to the success of features and programs. Prototyping tools can enhance the testing process but require careful implementation. Learning from failures in testing is essential for growth and improvement. Roadmaps should be flexible to adapt to changing priorities and evidence. It's important to focus on the core value proposition of a product. Continuous experimentation and adaptation are vital in product management. Guest Links Website: https://productdiscoverygroup.com/ LinkedIn Profile: https://www.linkedin.com/in/jimmorrisstanford/ If your leadership team is about to make a big strategic bet, the real risk usually isn’t the idea, it’s the assumptions behind it that haven’t been surfaced yet. A Decision Sprint is a focused 6–12 week engagement where we extract, map, and test those risks so leaders can make a clear Commit, Correct, or Cut decision before major capital moves. Learn more or apply at precoil.com.

    39 min
  6. FEB 18

    Dan Olsen | How I Test With Vibe Coding

    Summary In this conversation, David J Bland and Dan Olsen discuss the evolution of product management, the impact of vibe coding, and the importance of cross-functional collaboration. They explore the challenges of prototyping, user research, and the role of AI in product development. The discussion emphasizes the need for strong product management fundamentals and the future of product management in a rapidly changing landscape. Takeaways The awareness of product management has significantly increased over the years.Vibe coding allows for rapid prototyping and testing without heavy technical resources.Cross-functional collaboration is essential for successful product development.User research is becoming more valued in product management.Prototyping should focus on learning rather than just building.AI can assist in generating ideas but lacks judgment in prioritization.The pace of innovation in product tools is accelerating rapidly.Understanding customer problems is crucial for product success.Rushing to high fidelity prototypes can lead to missed opportunities in the problem space.Product management fundamentals will be key in differentiating successful products. Guest Links Website: https://dan-olsen.com/ LinkedIn Profile: https://www.linkedin.com/in/danolsen98/ YouTube Channel: https://www.youtube.com/danolsen Lean Product Meetup: https://www.meetup.com/lean-product/  Vibe Coding Product Brief: https://dan-olsen.com/vibe-coding/ Vibe Coding Spectrum: https://dan-olsen.com/vibe-coding/ The Lean Product Playbook: https://amzn.to/1EYCUdP If your leadership team is about to make a big strategic bet, the real risk usually isn’t the idea, it’s the assumptions behind it that haven’t been surfaced yet. A Decision Sprint is a focused 6–12 week engagement where we extract, map, and test those risks so leaders can make a clear Commit, Correct, or Cut decision before major capital moves. Learn more or apply at precoil.com.

    55 min

Ratings & Reviews

5
out of 5
4 Ratings

About

Testing your ideas against reality can be challenging. Not everything will go as planned. It’s about keeping an open mind, having a clear hypothesis and running multiple tests to see if you have enough directional evidence to keep going. This is the How I Tested That Podcast, where David J Bland connects with entrepreneurs and innovators who had the courage to test their ideas with real people, in the market, with sometimes surprising results. Join us as we explore the ups and downs of experimentation… together.

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