Extrapolating a bit. What seems to be missing from this story are any significant milestones. Humans need miletones. Perhaps more than projects do. Sure, you c

Extrapolating a bit. What seems to be missing from this story are any significant milestones. Humans need miletones. Perhaps more than projects do. Sure, you can psych yourself up every morning about how excited you are, about the greatness of the destination, and so on. But long timelines without significant feedback will catch up to you, your team, your investors, to everyone involved. When things stagger on and on and on, you lose focus, you lose confidence, and in that context bad decisions increase; as does friction between the team. Lean doesn't simply build products. Lean also addresses the human side.