It changes conversations with stakeholders from “‘you can’t do that/that’s not possible” to “how can we support you/oh, you’ve begun to figure it out”. Oftentimes, it’s hard for those not close to the product or in different disciplines to visualise what you’re trying to articulate through words, user stories etc alone.
… of mental energy and discipline. Express the opportunity as a customer problem and work backwards. What has to be true for the opportunity to exist? Now take each of those assumptions and ask what are the main assumptions behind them? Repeat until you’re reached the root assumptions. This is similar to the 5 Whys. Working your way b…