I don't think it is anything to do with complexity, or grouping code/data, its j...

hackit2 18 days ago | parent | context | favorite | on: Isolating complexity is the essence of successful ...

I don't think it is anything to do with complexity, or grouping code/data, its just a natural tendency of people to categorize things together that display a high degree of class inclusion. And some categories are easier to deal with than others.