Growth Marketing Lecture Review: A Frontend Developer's Perspective I am a current frontend developer. In addition to my work, I am also working on a solo development project and often helping my wife with her insurance sales. In the process, I have come across quite a few marketing books, but frankly, most of them didn't resonate with me as a developer. But this growth marketing lecture was different. Especially as a solo developer looking for ways to build and grow a product, the marketing theories I've looked into always felt distant. However, as the lecture began and I encountered the concept of "quantifying customer behavior," my thinking began to change. This wasn't just marketing. The process of measuring data, setting hypotheses, and experimenting was surprisingly similar to the way I solve problems with code. I was especially shocked when I learned about the AARRR framework. I realized that as a solo developer, I had mainly focused on Acquisition and Activation. I think I had a naive belief that "if I make a good product, people will come." There was no systematic approach to Revenue, Retention, and Referral. The concept of Aha Moment seems to be directly applicable to my solo development project. Defining the moment when a user realizes the true value of my service and optimizing the journey up to that moment. This was not marketing, but the core of product development. I found the growth equation a bit overwhelming. Equations and metrics poured out, but I soon understood that this could be a blueprint for designing the growth of my service. In particular, when helping my wife with her insurance sales, I was able to use this equation to set specific goals such as, "Acquire X new customers to generate Z revenue with a Y% conversion rate." Although it's originally about experimentation, the ICE framework (Impact, Confidence, Ease) has changed the way I prioritize my development. As a solo developer with limited time and resources, deciding what to develop first has always been a concern. Now, I can objectively evaluate the expected effect, confidence of success, and difficulty of implementation of each function to make decisions. The biggest change is my attitude towards my code. Before, I focused on "how clean is this code?" Now, I think about "how much does this UI contribute to the user's Aha Moment?" I have gained a perspective that balances technical perfection, user value, and business growth. (I sincerely think that all squads and team members should know growth marketing now.) Of course, it doesn't seem easy to apply everything right away. Some concepts of growth marketing still feel too grandiose for me as a solo developer. But now, at least, I seem to have a systematic approach and language for growth. As a developer, and as someone who also has to do marketing as a side job, this lecture opened my eyes to the world beyond code. It was a time to learn how to bridge the gap between technology and business.