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How do I know if my business idea is good?

A business idea is good if it solves a real problem for real people who are willing to pay for the solution. The challenge is that most founders believe their idea meets that definition, and many are wrong.

CB Insights looked at 431 venture-backed companies that shut down from 2023 onwards and could pin down why 385 of them failed. Poor product-market fit accounted for 43%, and two thirds of those never found a market at all. Only running out of capital ends more of them, and this is the one you can still do something about.

There are four questions worth asking before committing to any idea. Is the problem real, and do people actually experience it? Is your solution the right one, and does it solve it better than what already exists? Will people pay for it? And is the market large enough to build a viable business around?

Getting honest answers to those questions used to mean months of research, expensive discovery phases, or building a full product and finding out the hard way. For most founders that meant either skipping validation entirely or relying on surveys and assumptions that told them what they wanted to hear rather than what they needed to know.

That's changed. A working prototype (something real that people can actually use and react to) can now exist in days rather than months. The feedback you get from someone using something real is categorically more honest and more useful than anything a survey produces. Firms that validate thoroughly before building have a 60% higher chance of success, and doing it properly is now within reach of every founder, not just the ones with enterprise budgets.

Read our full guide to validating a business idea →

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Read more: How to Validate a Business Idea in the UK