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On Monday, you’ll map out the problem and pick an important place to focus. On Tuesday, you’ll sketch competing solutions on paper. On Wednesday, you’ll make difficult decisions and turn your ideas into a testable hypothesis. On Thursday, you’ll hammer out a realistic prototype. And on Friday, you’ll test it with real live humans.
First, the sprint forces your team to focus on the most pressing questions. Second, the sprint allows you to learn from just the surface of a finished product.
Lurking beneath every goal are dangerous assumptions. The longer those assumptions remain unexamined, the greater the risk.