https://www.youngju.dev/blog 천천히 올바르게. AI Researcher & DevOps Engineer Youngju's tech blog. GPU/CUDA, LLM, MLOps, Kubernetes AI workloads, distributed training, and data engineering. ko fjvbn2003@gmail.com (Youngju Kim) fjvbn2003@gmail.com (Youngju Kim) Fri, 19 Jun 2026 00:00:00 GMT https://www.youngju.dev/blog/culture/2026-06-19-depth-of-mastery-2500-vs-3000.en https://www.youngju.dev/blog/culture/2026-06-19-depth-of-mastery-2500-vs-3000.en Sometimes a difference that looks small on the surface actually marks an abyss in skill. Borrowing the analogy of table tennis ratings of 2500 and 3000, I explore what mastery really is, how its depth reveals itself, and the path to reaching that level, all through a developer’s eyes. Fri, 19 Jun 2026 00:00:00 GMT fjvbn2003@gmail.com (Youngju Kim) masterydeliberate-practiceskillgrowthself-improvementfeedbackdepth https://www.youngju.dev/blog/culture/2026-06-19-depth-of-mastery-2500-vs-3000.ja https://www.youngju.dev/blog/culture/2026-06-19-depth-of-mastery-2500-vs-3000.ja 表面上は小さく見える違いが、実は実力の深淵を分けることがあります。卓球の点数2500と3000のたとえを借りて、内功とは何か、その深さはどう現れるのか、そしてその水準に至る道を、開発者の視点で解きほぐします。 Fri, 19 Jun 2026 00:00:00 GMT fjvbn2003@gmail.com (Youngju Kim) masterydeliberate-practiceskillgrowthself-improvementfeedbackdepth https://www.youngju.dev/blog/culture/2026-06-19-depth-of-mastery-2500-vs-3000 https://www.youngju.dev/blog/culture/2026-06-19-depth-of-mastery-2500-vs-3000 겉으로는 작아 보이는 차이가, 실제로는 실력의 심연을 가르는 경우가 있습니다. 탁구 점수 2500과 3000의 비유를 빌려, 내공이란 무엇이며 그 깊이는 어떻게 드러나는지, 그리고 그 수준에 이르는 길을 개발자의 시선으로 풀어봅니다. Fri, 19 Jun 2026 00:00:00 GMT fjvbn2003@gmail.com (Youngju Kim) masterydeliberate-practiceskillgrowthself-improvementfeedbackdepth