You keep running into difficulty maintaining the code you’ve written because it turns out that the tutorials you followed cut corners and simplified complex issues. You find that your superficial knowledge of a thousand tools means you’re always floundering whenever a subtle bug arises or you have to do something that demands deep knowledge. People often accuse you of having a misleading CV because you don’t distinguish between a couple of weeks of extending an existing web service and a deep knowledge of the issues inherent in maintaining an interoperable and highly scalable enterprise system. What’s even worse is that because your knowledge is so superficial, you’re not even aware of how little you know until something or someone puts you to the test.
The solution the text offers is to “dig deep into tools, technologies, and techniques. To acquire the depths of knowledge to the point that you know why thing are the way they are.” Depth meaning you understand the forces that leads to a design rather than just the details of the design. Areas where you have deep knowledge feed your confidence and allows yourself to apply your value early when on a new team. Having the background knowledge of how things work gives you the ability to fall back onto that to tackle difficult challenges and allows you to explain the inner workings on to tools and systems you are working on. This knowledge will help you in interviews, setting yourself apart from others because you can explain how a system or tools works. Using primary sources is the best way to understand the deeper workings of things, you can follow the trail of information that leads you to the decisions made along the way and why they were chosen.
This pattern is overall good advice for anyone who want’s to be a software craftsman. It’s important to Dig Deep into something you are passionate about. You don’t have to know everything about programming and software design but you should know a good amount about a few important areas. The ability to fall back on that background knowledge keeps you from struggling to understand new concepts, and makes you an asset to any team because you understand what’s going on beneath the surface. With this knowledge you can help others by explaining things in a clear way. Doing research and looking into primary resources allows you to get to the core of the information. It takes time to learn how things work but the benefits are worth it. This pattern will definitely improve my professional career and ability to help other understand deeper concepts.