Almost every programmer hates dealing with someone else’s crappy code and dreams of rewriting it from scratch. But they forget: 🚫 The system can’t just stop. 💸 The rewrite costs more than they think. ⚠️ By the time it’s done, competitors might have already killed the business. Refactor wisely. 几乎每个程序员都讨厌处理别人的屎山代码，梦想着能从零开始重写一遍。 但他们忘了： 🚫 系统不能随便停下来。 💸 重写的成本远超预期。 ⚠️ 等他们重写完，竞争对手可能早就把业务打垮了。 重构，要明智。 这是工程技术思维的人的通病，马斯克也不能幸免。