It was a lecture that left me with many regrets. (My money..ㅠ.ㅠ) First of all, the lecture structure is a code review method. You shouldn't think of it as a lecture where you build things up one by one with the instructor. If you are a developer with experience in other languages, I recommend that you slowly practice CryptoZombies. That will save you money and time. If you don't understand CryptoZombies, you will not understand what I'm talking about even after taking this lecture. Make a good decision~ ^^