Bret Victor: email (9/3/04)Interface matters to me more than anything else, and it always has. I just never realized that. I've spent a lot of time over the years desperately trying to think of a "thing" to change the world. I now know why the search was fruitless -- things don't change the world. People change the world by using things. The focus ... See more

Define the user journey before you define the feature.

1. Who is the user? — How would you classify this group of people? What do they care about? What are their habits?


2. What problems do they encounter? — What do they want to achieve? What are their pain points? How do they think and behave? What evidence do we have for believing this?


3. How will they

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