…it. This might be storyboards, wireframes, or maybe go with high-fidelity videos. But keep in mind: it’s about the change in people’s experiences, not about the change in the pixels.
Talk about the solution in terms of the experience, not the product.
Obvious is all about always. The thing(s) people do all the time, the always stuff, should be obvious. The core, the epicenter, the essence of the product should be obvious.