The costliest mistake in business innovation is spending too much time on the wrong idea. Businesspeople tend to overestimate 1) how much people will understand new products and 2) how much they’ll care.
Instead of guessing, get answers. Build a lightweight prototype and watch your customers interact with it.
You’ll see how much people “get” your idea. You’ll watch as their faces reveal what’s confusing or delightful. You’ll listen as they send buying signals (e.g., “When will it be ready?”)—or not.
A sprint won’t answer every question, but it will tell you 80% of what you need to know about your idea in days—not weeks or months.