There is an art to knowing where things should be checked and making sure that the program fails fast if you make a mistake. That kind of choosing is… - Ward Cunningham

I can't tell you how much time is spent worrying about decisions that don't matter. To just be able to make a decision and see what happens is tremendously empowering, but that means you have to set up the situation such that when something does go wrong, you can fix it.

I think there's a compelling nature about talking. People like to talk. In creating wiki, I wanted to stroke that story-telling nature in all of us. Second, and perhaps most important, I wanted people who wouldn't normally author to find it comfortable authoring, so that there stood a chance of us discovering the structure of what they had to say.

The code might be organized in a hierarchy, but the solution has more dimensions than will fit in a hierarchy. So when you discover a solution in a dimension that crosses across the hierarchy, you just have to go where the solution takes you and put the solution in.