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) Sun, 21 Jun 2026 00:00:00 GMT https://www.youngju.dev/blog/culture/2026-06-21-science-of-lasting-friendship.en https://www.youngju.dev/blog/culture/2026-06-21-science-of-lasting-friendship.en How do friendships begin, and why do some last a lifetime while others quietly fade? Drawing on research into proximity, repetition, self-disclosure, Dunbar's number, and the link between friendship and health, this essay explores how friends are really made. Sun, 21 Jun 2026 00:00:00 GMT fjvbn2003@gmail.com (Youngju Kim) friendshippsychologyrelationshipswellbeingsocial-science https://www.youngju.dev/blog/culture/2026-06-21-science-of-lasting-friendship https://www.youngju.dev/blog/culture/2026-06-21-science-of-lasting-friendship 우정은 어떻게 시작되고, 왜 어떤 관계는 평생 가는데 어떤 관계는 흐려질까요. 근접성과 반복, 자기개방, 던바의 수, 그리고 우정이 건강과 수명에 미치는 영향을 과학적 근거로 따뜻하게 풀어봅니다. Sun, 21 Jun 2026 00:00:00 GMT fjvbn2003@gmail.com (Youngju Kim) friendshippsychologyrelationshipswellbeingsocial-science