A strong startup idea begins with a problem customers urgently want solved, then pairs that need with a credible opening for a new business. In a 2021 excerpt from From Startup to Exit, entrepreneur Shirish Nadkarni points to industry shifts, network effects and sharing as possible advantages; entrepreneur and educator Bradley Treat adds a practical test: talk to potential customers and learn how they handle the problem today. Neither perspective offers a formula for predicting success. Together, they suggest questions founders can investigate before committing heavily to a business.
What makes a great startup idea?
In his 2021 GeekWire excerpt, Nadkarni’s central test is whether a startup can solve a consequential problem in a way customers value, while finding an opening that established competitors may not be positioned to seize. The idea should be more than a product a founder wants to build: it needs a customer, a meaningful need and a plausible route to those customers.
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That is a set of hypotheses to test, not a checklist that guarantees a successful company. Bradley Treat’s eCornell interview offers a useful starting point: “A business solves a problem that people care about. Someone has to be willing to pay for the solution.”
Look for a specific opening in the market
Incumbents may have advantages a new company cannot quickly match, including reputation, a broad feature set, established sales systems and customer lock-in. Nadkarni’s argument is not that those advantages disappear, but that a change in an industry can make an incumbent’s investments or business model a disadvantage when it slows adaptation.
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He points to the PC, internet and mobile eras as historical transitions that created opportunities for new businesses and disrupted some established players. These examples describe past shifts; they are not a forecast that a particular present-day technology will produce the next breakout company.
Microsoft’s transition to Windows is another historical illustration in the excerpt. GeekWire’s 2021 account says Windows 3.0 arrived in 1990; it also recounts Hotmail’s 1996 launch and Microsoft’s 1997 acquisition. The lesson to draw is about changing competitive conditions, not that a new entrant will necessarily prevail whenever a market changes.
Start with urgent customer pain, not a feature
Nadkarni calls this “Aspirins, not vitamins”: prioritize a problem people feel strongly enough to address, rather than a nice-to-have improvement. A product can be clever and still struggle if customers are not motivated to switch, spend money or change a habit.
Urgency alone is not enough. The proposed solution also has to be materially useful compared with what customers already do. In the excerpt, Nadkarni uses Slack and language-learning company Livemocha as examples of products he considers differentiated; those examples illustrate his argument rather than prove that a similar idea will work today.
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The excerpt’s author biography says Livemocha had more than 15 million registered members across over 200 countries and was acquired by RosettaStone in 2013. Those are historical figures and details reported in the 2021 publication, not a current membership count or a general forecast for startups.
Test the problem and alternatives with customers
Treat’s eCornell interview turns the idea into a discovery process. A founder should learn what problem a customer cares about, how that person currently solves it, and what would make an alternative meaningfully better or different. As Treat puts it, “The more you can talk to customers, the better.”
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- Identify a specific customer and problem. Avoid describing the opportunity only as a technology or a broad market. Find out who experiences the problem and in what circumstances.
- Ask how it is handled now. Existing workarounds and competitors reveal what customers currently choose, tolerate or pay for.
- Understand what is missing. Ask what customers value about existing options and where those options fall short. Competition can signal demand; it does not establish that a new entrant has a reason to win.
- Show a low-cost mock-up. Treat recommends using a simple representation to elicit feedback before investing in a polished build. The purpose is to learn whether the proposed solution addresses a real need, not to treat compliments as proof of future purchases.
Consider whether use can help the business grow
Network effects
A network effect exists when a service becomes more useful to a participant as more people or organizations join. Nadkarni names marketplaces, social networks, collaboration tools and benchmarking as examples. For each idea, ask who benefits from additional participants and what makes those participants likely to join. A growing user count alone is not evidence that the product is more valuable to each user.
Network effects may strengthen a business, but they do not make it immune to disruption. They are a possible advantage to investigate, not a substitute for solving a customer problem.
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Virality and sharing
Nadkarni distinguishes a product that prompts users to recruit others from one that spreads because sharing is built into normal use or promoted by the company. These routes can reduce reliance on paid customer acquisition if people genuinely invite or expose others to the product. The question is whether sharing follows naturally from the product’s value, rather than being an assumption in a growth plan.
The excerpt’s Skype and WhatsApp comparison is an illustration of how technology and user behavior can change; it reflects Nadkarni’s 2021 discussion, not a current comparison of the companies.
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.Compare startup ideas without pretending to predict success
If you are choosing between ideas, compare them against the same questions. This framework synthesizes Nadkarni’s excerpt and Treat’s interview; it is not a validated scoring system. Use it to find unanswered questions, not to produce a success probability.
- Problem: How urgent and frequent is the customer’s difficulty?
- Evidence of demand: What do customer conversations, existing workarounds or payments show about whether people care?
- Alternatives: What do customers use now, and what remains unsolved?
- Differentiation: Why would the intended customer choose this solution over the alternatives?
- Timing: Is a specific market or platform transition creating an opening, or is the idea relying on a vague prediction?
- Growth mechanism: Could more participants make the service more valuable, or could ordinary use lead to sharing?
- Customer acquisition: How will the business reach likely users, and how dependent is that route on paid effort?
These questions can help founders decide what to investigate next. The evidence described by Nadkarni and Treat does not establish a universal formula, a startup success rate or a guarantee that any particular idea will become profitable.
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The excerpt is from From Startup to Exit by Shirish Nadkarni, published by GeekWire on June 26, 2021, with permission credited to HarperCollins Leadership. Bradley Treat’s interview on customer problems, competition and prototype feedback appeared in eCornell #IMPACT on January 24, 2018.
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