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Steve Blank's customer development. Problem interviews, solution interviews, and customer validation.
Estimated completion time: 21 lessons • Self-paced learning • Lifetime access
Face-to-face discovery.
Pivot strategy. When to pivot, pivot types, and business model iteration.
Lean startup. Build-measure-learn, MVP development, and validated learning.
Find and measure product-market fit. Sean Ellis test, retention curves, and PMF signals.