"The cost of adding a feature isn't just the time it takes to code it. The cost also includes the addition of an obstacle to future expansion. The trick is to pick the features that don't fight each other"

John Carmack's quote is a tip that when including a feature to a project, the expense is not just the moment it requires to code it. It also includes the possibility for creating an obstacle to future expansion. This suggests that when adding a feature, it is essential to consider just how it will certainly impact the ability to include extra attributes in the future. The trick is to select features that will certainly not conflict with each other, to ensure that future growth is not prevented. This needs careful factor to consider of the attributes being included as well as how they will connect with each other. By making the effort to analyze the implications of adding an attribute, it is possible to make certain that future growth is not impeded.