It's from an old parable, also called Parkinson's Law of Triviality. Basically, simple things get discussed more because everyone can understand them. It goes s

It's from an old parable, also called Parkinson's Law of Triviality. Basically, simple things get discussed more because everyone can understand them. It goes something like this: "If a committee designs a bikeshed, they will spend five minutes discussing the structural requirements, half an hour on the size, and the rest of the available time arguing about what color to paint the shed."