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      <title>Chaos and Order</title>
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      <description>천천히 올바르게. AI Researcher &amp; DevOps Engineer Youngju&#39;s blog. GPU/CUDA, LLM, MLOps, Kubernetes AI workloads, and data engineering — plus mindset essays on confidence, routines, health, and sport psychology.</description>
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      <managingEditor>fjvbn2003@gmail.com (Youngju Kim)</managingEditor>
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    <title>On Getting Older — Where the Common Story and the Data Come Apart</title>
    <link>https://www.youngju.dev/blog/mindset/on-getting-older.en</link>
    <description>Across data from many countries, the age at which life satisfaction is lowest sits somewhere around forty-seven, and after that it mostly rises. The U-curve does have serious critics, though. This post walks through the way fluid and crystallized intelligence part company, the theory from Laura Carstensen about what happens to relationships when time feels short, the research of Becca Levy on self-perceptions of aging and its limits, the statistical error inside the feeling of being too late as founder and prize data describe it, and the physical foundation of strength and sleep underneath it all.</description>
    <pubDate>Sun, 26 Jul 2026 00:00:00 GMT</pubDate>
    <author>fjvbn2003@gmail.com (Youngju Kim)</author>
    <category>mindset</category><category>aging</category><category>psychology</category><category>life</category><category>health</category>
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  <item>
    <guid>https://www.youngju.dev/blog/mindset/on-getting-older.ja</guid>
    <title>年を取るということについて — 通念とデータが食い違う地点</title>
    <link>https://www.youngju.dev/blog/mindset/on-getting-older.ja</link>
    <description>複数の国の資料で、生活満足度が最も低い年齢は47歳あたりで、その後はおおむね上がっていきます。ただしこのU字曲線には手ごわい反論もあります。流動性知能と結晶性知能が分かれていく仕方、残り時間が短いと感じたとき関係が整理されるというカーステンセンの理論、老化についての自己認識と寿命の相関を示したベッカ・レビーの研究とその限界、創業と受賞のデータが語る遅すぎるという感覚の誤り、そして筋力と睡眠という物理的な土台まで整理しました。</description>
    <pubDate>Sun, 26 Jul 2026 00:00:00 GMT</pubDate>
    <author>fjvbn2003@gmail.com (Youngju Kim)</author>
    <category>mindset</category><category>aging</category><category>psychology</category><category>life</category><category>health</category>
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  <item>
    <guid>https://www.youngju.dev/blog/mindset/on-getting-older</guid>
    <title>나이 든다는 것에 대하여 — 통념과 데이터가 어긋나는 지점들</title>
    <link>https://www.youngju.dev/blog/mindset/on-getting-older</link>
    <description>여러 나라의 자료에서 삶의 만족도가 가장 낮은 나이는 마흔일곱 언저리이고, 그 뒤로는 대체로 올라갑니다. 다만 이 U자 곡선에는 만만치 않은 반론도 있습니다. 유동성 지능과 결정성 지능이 갈라지는 방식, 남은 시간이 짧다고 느낄 때 관계가 정리된다는 카스텐슨의 이론, 노화에 대한 자기 인식과 수명의 상관을 보인 베카 레비의 연구와 그 한계, 창업과 수상 데이터가 말해 주는 늦었다는 감각의 오류, 그리고 근력과 수면이라는 물리적 기반까지 정리했습니다.</description>
    <pubDate>Sun, 26 Jul 2026 00:00:00 GMT</pubDate>
    <author>fjvbn2003@gmail.com (Youngju Kim)</author>
    <category>mindset</category><category>aging</category><category>psychology</category><category>life</category><category>health</category>
  </item>

  <item>
    <guid>https://www.youngju.dev/blog/mindset/on-getting-older.zh</guid>
    <title>关于变老这件事 — 通念与数据分道扬镳的地方</title>
    <link>https://www.youngju.dev/blog/mindset/on-getting-older.zh</link>
    <description>在多国资料里，生活满意度最低的年龄大约在四十七岁前后，此后大体上升。不过这条U型曲线也面临不小的反驳。本文梳理了流体智力与晶体智力如何分道、卡斯滕森关于剩余时间变短时关系会被整理的理论、贝卡·莱维关于老化自我认知与寿命相关的研究及其局限、创业与获奖数据揭示的太晚了这种感觉的误差，以及力量与睡眠这个物理地基。</description>
    <pubDate>Sun, 26 Jul 2026 00:00:00 GMT</pubDate>
    <author>fjvbn2003@gmail.com (Youngju Kim)</author>
    <category>mindset</category><category>aging</category><category>psychology</category><category>life</category><category>health</category>
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