It's both. Sure, if you have project like facebook then you problably won't get away from complexity, and you NEED a tool to help you manage that. But at the

It's both. Sure, if you have project like facebook then you problably won't get away from complexity, and you NEED a tool to help you manage that. But at the same time, if you assume you need such tool from the beginning, chances are you will over-complicate your solution and it will become a self fulfilling prophecy of trying to tackle complexity by adding more complexity