<?xml version="1.0" encoding="utf-8" standalone="yes"?><urlset xmlns="http://www.sitemaps.org/schemas/sitemap/0.9" xmlns:xhtml="http://www.w3.org/1999/xhtml"><url><loc>https://yifeitao.com/ja/categories/</loc><lastmod>2026-05-19T00:00:00+00:00</lastmod><xhtml:link rel="alternate" hreflang="zh-cn" href="https://yifeitao.com/categories/"/><xhtml:link rel="alternate" hreflang="en" href="https://yifeitao.com/en/categories/"/><xhtml:link rel="alternate" hreflang="ja" href="https://yifeitao.com/ja/categories/"/></url><url><loc>https://yifeitao.com/ja/posts/</loc><lastmod>2026-05-19T00:00:00+00:00</lastmod><xhtml:link rel="alternate" hreflang="zh-cn" href="https://yifeitao.com/posts/"/><xhtml:link rel="alternate" hreflang="en" href="https://yifeitao.com/en/posts/"/><xhtml:link rel="alternate" hreflang="ja" href="https://yifeitao.com/ja/posts/"/></url><url><loc>https://yifeitao.com/ja/tags/</loc><lastmod>2026-05-19T00:00:00+00:00</lastmod><xhtml:link rel="alternate" hreflang="zh-cn" href="https://yifeitao.com/tags/"/><xhtml:link rel="alternate" hreflang="en" href="https://yifeitao.com/en/tags/"/><xhtml:link rel="alternate" hreflang="ja" href="https://yifeitao.com/ja/tags/"/></url><url><loc>https://yifeitao.com/ja/categories/viewpoint/</loc><lastmod>2026-05-19T00:00:00+00:00</lastmod><xhtml:link rel="alternate" hreflang="zh-cn" href="https://yifeitao.com/categories/viewpoint/"/><xhtml:link rel="alternate" hreflang="en" href="https://yifeitao.com/en/categories/viewpoint/"/><xhtml:link rel="alternate" hreflang="ja" href="https://yifeitao.com/ja/categories/viewpoint/"/></url><url><loc>https://yifeitao.com/ja/</loc><lastmod>2026-05-19T00:00:00+00:00</lastmod><xhtml:link rel="alternate" hreflang="zh-cn" href="https://yifeitao.com/"/><xhtml:link rel="alternate" hreflang="en" href="https://yifeitao.com/en/"/><xhtml:link rel="alternate" hreflang="ja" href="https://yifeitao.com/ja/"/></url><url><loc>https://yifeitao.com/ja/why-are-we-busier-as-productivity-increases/</loc><lastmod>2026-05-19T00:00:00+00:00</lastmod><xhtml:link rel="alternate" hreflang="zh-cn" href="https://yifeitao.com/why-are-we-busier-as-productivity-increases/"/><xhtml:link rel="alternate" hreflang="en" href="https://yifeitao.com/en/why-are-we-busier-as-productivity-increases/"/><xhtml:link rel="alternate" hreflang="ja" href="https://yifeitao.com/ja/why-are-we-busier-as-productivity-increases/"/></url><url><loc>https://yifeitao.com/ja/tags/%E6%80%9D%E8%80%83/</loc><lastmod>2026-05-19T00:00:00+00:00</lastmod><xhtml:link rel="alternate" hreflang="zh-cn" href="https://yifeitao.com/tags/%E6%80%9D%E8%80%83/"/><xhtml:link rel="alternate" hreflang="ja" href="https://yifeitao.com/ja/tags/%E6%80%9D%E8%80%83/"/></url><url><loc>https://yifeitao.com/ja/tags/%E7%94%9F%E7%94%A3%E6%80%A7/</loc><lastmod>2026-05-19T00:00:00+00:00</lastmod></url><url><loc>https://yifeitao.com/ja/tags/%E5%93%B2%E5%AD%A6/</loc><lastmod>2026-05-19T00:00:00+00:00</lastmod><xhtml:link rel="alternate" hreflang="zh-cn" href="https://yifeitao.com/tags/%E5%93%B2%E5%AD%A6/"/><xhtml:link rel="alternate" hreflang="ja" href="https://yifeitao.com/ja/tags/%E5%93%B2%E5%AD%A6/"/></url><url><loc>https://yifeitao.com/ja/ai-distillation-destiny-and-then/</loc><lastmod>2026-04-15T00:00:00+00:00</lastmod><xhtml:link rel="alternate" hreflang="zh-cn" href="https://yifeitao.com/ai-distillation-destiny-and-then/"/><xhtml:link rel="alternate" hreflang="en" href="https://yifeitao.com/en/ai-distillation-destiny-and-then/"/><xhtml:link rel="alternate" hreflang="ja" href="https://yifeitao.com/ja/ai-distillation-destiny-and-then/"/></url><url><loc>https://yifeitao.com/ja/tags/%E4%BA%BA%E5%B7%A5%E7%9F%A5%E8%83%BD/</loc><lastmod>2026-04-15T00:00:00+00:00</lastmod></url><url><loc>https://yifeitao.com/ja/categories/reading/</loc><lastmod>2026-04-12T00:00:00+00:00</lastmod><xhtml:link rel="alternate" hreflang="zh-cn" href="https://yifeitao.com/categories/reading/"/><xhtml:link rel="alternate" hreflang="en" href="https://yifeitao.com/en/categories/reading/"/><xhtml:link rel="alternate" hreflang="ja" href="https://yifeitao.com/ja/categories/reading/"/></url><url><loc>https://yifeitao.com/ja/tags/%E6%95%B0%E5%AD%A6/</loc><lastmod>2026-04-12T00:00:00+00:00</lastmod><xhtml:link rel="alternate" hreflang="zh-cn" href="https://yifeitao.com/tags/%E6%95%B0%E5%AD%A6/"/><xhtml:link rel="alternate" hreflang="ja" href="https://yifeitao.com/ja/tags/%E6%95%B0%E5%AD%A6/"/></url><url><loc>https://yifeitao.com/ja/twenty-years-reflection-my-math-ceiling/</loc><lastmod>2026-04-12T00:00:00+00:00</lastmod><xhtml:link rel="alternate" hreflang="zh-cn" href="https://yifeitao.com/twenty-years-reflection-my-math-ceiling/"/><xhtml:link rel="alternate" hreflang="en" href="https://yifeitao.com/en/twenty-years-reflection-my-math-ceiling/"/><xhtml:link rel="alternate" hreflang="ja" href="https://yifeitao.com/ja/twenty-years-reflection-my-math-ceiling/"/></url><url><loc>https://yifeitao.com/ja/categories/investment/</loc><lastmod>2026-04-01T00:00:00+00:00</lastmod><xhtml:link rel="alternate" hreflang="zh-cn" href="https://yifeitao.com/categories/investment/"/><xhtml:link rel="alternate" hreflang="en" href="https://yifeitao.com/en/categories/investment/"/><xhtml:link rel="alternate" hreflang="ja" href="https://yifeitao.com/ja/categories/investment/"/></url><url><loc>https://yifeitao.com/ja/tags/%E3%82%B9%E3%83%9E%E3%83%9B/</loc><lastmod>2026-04-01T00:00:00+00:00</lastmod></url><url><loc>https://yifeitao.com/ja/break-the-phone-loop/</loc><lastmod>2026-04-01T00:00:00+00:00</lastmod><xhtml:link rel="alternate" hreflang="zh-cn" href="https://yifeitao.com/break-the-phone-loop/"/><xhtml:link rel="alternate" hreflang="en" href="https://yifeitao.com/en/break-the-phone-loop/"/><xhtml:link rel="alternate" hreflang="ja" href="https://yifeitao.com/ja/break-the-phone-loop/"/></url><url><loc>https://yifeitao.com/ja/moutai-positioning-evolution/</loc><lastmod>2026-03-30T00:00:00+00:00</lastmod><xhtml:link rel="alternate" hreflang="zh-cn" href="https://yifeitao.com/moutai-positioning-evolution/"/><xhtml:link rel="alternate" hreflang="en" href="https://yifeitao.com/en/moutai-positioning-evolution/"/><xhtml:link rel="alternate" hreflang="ja" href="https://yifeitao.com/ja/moutai-positioning-evolution/"/></url><url><loc>https://yifeitao.com/ja/tags/%E8%B2%B4%E5%B7%9E%E8%8C%85%E5%8F%B0/</loc><lastmod>2026-03-30T00:00:00+00:00</lastmod></url><url><loc>https://yifeitao.com/ja/holding-vs-buying/</loc><lastmod>2025-08-06T00:00:00+00:00</lastmod><xhtml:link rel="alternate" hreflang="zh-cn" href="https://yifeitao.com/holding-vs-buying/"/><xhtml:link rel="alternate" hreflang="en" href="https://yifeitao.com/en/holding-vs-buying/"/><xhtml:link rel="alternate" hreflang="ja" href="https://yifeitao.com/ja/holding-vs-buying/"/></url><url><loc>https://yifeitao.com/ja/three-layers-of-stocks/</loc><lastmod>2025-01-09T00:00:00+00:00</lastmod><xhtml:link rel="alternate" hreflang="zh-cn" href="https://yifeitao.com/three-layers-of-stocks/"/><xhtml:link rel="alternate" hreflang="en" href="https://yifeitao.com/en/three-layers-of-stocks/"/><xhtml:link rel="alternate" hreflang="ja" href="https://yifeitao.com/ja/three-layers-of-stocks/"/></url><url><loc>https://yifeitao.com/ja/featured/</loc><lastmod>2025-01-01T00:00:00+00:00</lastmod><xhtml:link rel="alternate" hreflang="zh-cn" href="https://yifeitao.com/featured/"/><xhtml:link rel="alternate" hreflang="en" href="https://yifeitao.com/en/featured/"/><xhtml:link rel="alternate" hreflang="ja" href="https://yifeitao.com/ja/featured/"/></url><url><loc>https://yifeitao.com/ja/archive/</loc><lastmod>2024-01-01T00:00:00+00:00</lastmod><xhtml:link rel="alternate" hreflang="zh-cn" href="https://yifeitao.com/archive/"/><xhtml:link rel="alternate" hreflang="en" href="https://yifeitao.com/en/archive/"/><xhtml:link rel="alternate" hreflang="ja" href="https://yifeitao.com/ja/archive/"/></url><url><loc>https://yifeitao.com/ja/search/</loc><lastmod>2024-01-01T00:00:00+00:00</lastmod><xhtml:link rel="alternate" hreflang="zh-cn" href="https://yifeitao.com/search/"/><xhtml:link rel="alternate" hreflang="en" href="https://yifeitao.com/en/search/"/><xhtml:link rel="alternate" hreflang="ja" href="https://yifeitao.com/ja/search/"/></url><url><loc>https://yifeitao.com/ja/the-gardener-and-the-carpenter/</loc><lastmod>2019-10-20T00:00:00+00:00</lastmod><xhtml:link rel="alternate" hreflang="zh-cn" href="https://yifeitao.com/the-gardener-and-the-carpenter/"/><xhtml:link rel="alternate" hreflang="en" href="https://yifeitao.com/en/the-gardener-and-the-carpenter/"/><xhtml:link rel="alternate" hreflang="ja" href="https://yifeitao.com/ja/the-gardener-and-the-carpenter/"/></url><url><loc>https://yifeitao.com/ja/tags/%E5%AD%90%E8%82%B2%E3%81%A6/</loc><lastmod>2019-10-20T00:00:00+00:00</lastmod></url><url><loc>https://yifeitao.com/ja/tags/%E8%AA%AD%E6%9B%B8%E3%83%8E%E3%83%BC%E3%83%88/</loc><lastmod>2019-10-20T00:00:00+00:00</lastmod></url><url><loc>https://yifeitao.com/ja/tags/faq/</loc><lastmod>2019-08-18T00:00:00+00:00</lastmod><xhtml:link rel="alternate" hreflang="zh-cn" href="https://yifeitao.com/tags/faq/"/><xhtml:link rel="alternate" hreflang="en" href="https://yifeitao.com/en/tags/faq/"/><xhtml:link rel="alternate" hreflang="ja" href="https://yifeitao.com/ja/tags/faq/"/></url><url><loc>https://yifeitao.com/ja/categories/methodology/</loc><lastmod>2019-08-18T00:00:00+00:00</lastmod><xhtml:link rel="alternate" hreflang="zh-cn" href="https://yifeitao.com/categories/methodology/"/><xhtml:link rel="alternate" hreflang="en" href="https://yifeitao.com/en/categories/methodology/"/><xhtml:link rel="alternate" hreflang="ja" href="https://yifeitao.com/ja/categories/methodology/"/></url><url><loc>https://yifeitao.com/ja/tags/%E5%AD%A6%E7%BF%92/</loc><lastmod>2019-08-18T00:00:00+00:00</lastmod></url><url><loc>https://yifeitao.com/ja/learning-faq-2019/</loc><lastmod>2019-08-18T00:00:00+00:00</lastmod><xhtml:link rel="alternate" hreflang="zh-cn" href="https://yifeitao.com/learning-faq-2019/"/><xhtml:link rel="alternate" hreflang="en" href="https://yifeitao.com/en/learning-faq-2019/"/><xhtml:link rel="alternate" hreflang="ja" href="https://yifeitao.com/ja/learning-faq-2019/"/></url><url><loc>https://yifeitao.com/ja/categories/coding/</loc><lastmod>2019-04-23T00:00:00+00:00</lastmod><xhtml:link rel="alternate" hreflang="zh-cn" href="https://yifeitao.com/categories/coding/"/><xhtml:link rel="alternate" hreflang="en" href="https://yifeitao.com/en/categories/coding/"/><xhtml:link rel="alternate" hreflang="ja" href="https://yifeitao.com/ja/categories/coding/"/></url><url><loc>https://yifeitao.com/ja/tags/%E3%82%A2%E3%83%AB%E3%82%B4%E3%83%AA%E3%82%BA%E3%83%A0/</loc><lastmod>2019-04-23T00:00:00+00:00</lastmod></url><url><loc>https://yifeitao.com/ja/frog-and-cache/</loc><lastmod>2019-04-23T00:00:00+00:00</lastmod><xhtml:link rel="alternate" hreflang="zh-cn" href="https://yifeitao.com/frog-and-cache/"/><xhtml:link rel="alternate" hreflang="en" href="https://yifeitao.com/en/frog-and-cache/"/><xhtml:link rel="alternate" hreflang="ja" href="https://yifeitao.com/ja/frog-and-cache/"/></url><url><loc>https://yifeitao.com/ja/tags/%E5%8B%95%E7%9A%84%E8%A8%88%E7%94%BB%E6%B3%95/</loc><lastmod>2019-04-23T00:00:00+00:00</lastmod></url><url><loc>https://yifeitao.com/ja/tags/%E6%A9%9F%E6%A2%B0%E5%AD%A6%E7%BF%92/</loc><lastmod>2018-02-21T00:00:00+00:00</lastmod></url><url><loc>https://yifeitao.com/ja/score-and-loss-function-of-binary-classification/</loc><lastmod>2018-02-21T00:00:00+00:00</lastmod><xhtml:link rel="alternate" hreflang="zh-cn" href="https://yifeitao.com/score-and-loss-function-of-binary-classification/"/><xhtml:link rel="alternate" hreflang="en" href="https://yifeitao.com/en/score-and-loss-function-of-binary-classification/"/><xhtml:link rel="alternate" hreflang="ja" href="https://yifeitao.com/ja/score-and-loss-function-of-binary-classification/"/></url><url><loc>https://yifeitao.com/ja/tags/%E5%88%86%E9%A1%9E/</loc><lastmod>2018-02-21T00:00:00+00:00</lastmod></url><url><loc>https://yifeitao.com/ja/categories/life/</loc><lastmod>2017-08-10T00:00:00+00:00</lastmod><xhtml:link rel="alternate" hreflang="zh-cn" href="https://yifeitao.com/categories/life/"/><xhtml:link rel="alternate" hreflang="en" href="https://yifeitao.com/en/categories/life/"/><xhtml:link rel="alternate" hreflang="ja" href="https://yifeitao.com/ja/categories/life/"/></url><url><loc>https://yifeitao.com/ja/tags/%E3%83%93%E3%83%83%E3%83%88%E3%82%B3%E3%82%A4%E3%83%B3/</loc><lastmod>2017-08-10T00:00:00+00:00</lastmod></url><url><loc>https://yifeitao.com/ja/bitcoin-faq/</loc><lastmod>2017-08-10T00:00:00+00:00</lastmod><xhtml:link rel="alternate" hreflang="zh-cn" href="https://yifeitao.com/bitcoin-faq/"/><xhtml:link rel="alternate" hreflang="en" href="https://yifeitao.com/en/bitcoin-faq/"/><xhtml:link rel="alternate" hreflang="ja" href="https://yifeitao.com/ja/bitcoin-faq/"/></url><url><loc>https://yifeitao.com/ja/kelly-formula/</loc><lastmod>2017-02-16T00:00:00+00:00</lastmod><xhtml:link rel="alternate" hreflang="zh-cn" href="https://yifeitao.com/kelly-formula/"/><xhtml:link rel="alternate" hreflang="en" href="https://yifeitao.com/en/kelly-formula/"/><xhtml:link rel="alternate" hreflang="ja" href="https://yifeitao.com/ja/kelly-formula/"/></url><url><loc>https://yifeitao.com/ja/tags/%E6%8A%95%E8%B3%87/</loc><lastmod>2017-02-16T00:00:00+00:00</lastmod></url><url><loc>https://yifeitao.com/ja/the-power-of-repeat/</loc><lastmod>2017-02-06T00:00:00+00:00</lastmod><xhtml:link rel="alternate" hreflang="zh-cn" href="https://yifeitao.com/the-power-of-repeat/"/><xhtml:link rel="alternate" hreflang="en" href="https://yifeitao.com/en/the-power-of-repeat/"/><xhtml:link rel="alternate" hreflang="ja" href="https://yifeitao.com/ja/the-power-of-repeat/"/></url><url><loc>https://yifeitao.com/ja/tags/%E6%96%B9%E6%B3%95%E8%AB%96/</loc><lastmod>2017-02-06T00:00:00+00:00</lastmod></url><url><loc>https://yifeitao.com/ja/five-steps-reading/</loc><lastmod>2017-01-18T00:00:00+00:00</lastmod><xhtml:link rel="alternate" hreflang="zh-cn" href="https://yifeitao.com/five-steps-reading/"/><xhtml:link rel="alternate" hreflang="en" href="https://yifeitao.com/en/five-steps-reading/"/><xhtml:link rel="alternate" hreflang="ja" href="https://yifeitao.com/ja/five-steps-reading/"/></url><url><loc>https://yifeitao.com/ja/tags/%E8%AA%AD%E6%9B%B8/</loc><lastmod>2017-01-18T00:00:00+00:00</lastmod></url><url><loc>https://yifeitao.com/ja/tags/%E3%82%BD%E3%83%95%E3%83%88%E3%82%A6%E3%82%A7%E3%82%A2%E5%B7%A5%E5%AD%A6/</loc><lastmod>2017-01-17T00:00:00+00:00</lastmod></url><url><loc>https://yifeitao.com/ja/tags/%E3%83%97%E3%83%AD%E3%82%B0%E3%83%A9%E3%83%9F%E3%83%B3%E3%82%B0/</loc><lastmod>2017-01-17T00:00:00+00:00</lastmod></url><url><loc>https://yifeitao.com/ja/development-of-highly-configurable-software/</loc><lastmod>2017-01-17T00:00:00+00:00</lastmod><xhtml:link rel="alternate" hreflang="zh-cn" href="https://yifeitao.com/development-of-highly-configurable-software/"/><xhtml:link rel="alternate" hreflang="en" href="https://yifeitao.com/en/development-of-highly-configurable-software/"/><xhtml:link rel="alternate" hreflang="ja" href="https://yifeitao.com/ja/development-of-highly-configurable-software/"/></url><url><loc>https://yifeitao.com/ja/the-15-principle-of-personal-finance/</loc><lastmod>2017-01-05T00:00:00+00:00</lastmod><xhtml:link rel="alternate" hreflang="zh-cn" href="https://yifeitao.com/the-15-principle-of-personal-finance/"/><xhtml:link rel="alternate" hreflang="en" href="https://yifeitao.com/en/the-15-principle-of-personal-finance/"/><xhtml:link rel="alternate" hreflang="ja" href="https://yifeitao.com/ja/the-15-principle-of-personal-finance/"/></url><url><loc>https://yifeitao.com/ja/tags/%E8%B3%87%E7%94%A3%E7%AE%A1%E7%90%86/</loc><lastmod>2017-01-05T00:00:00+00:00</lastmod></url><url><loc>https://yifeitao.com/ja/tags/%E7%A2%BA%E7%8E%87/</loc><lastmod>2017-01-04T00:00:00+00:00</lastmod></url><url><loc>https://yifeitao.com/ja/the-principle-of-probability-of-destiny/</loc><lastmod>2017-01-04T00:00:00+00:00</lastmod><xhtml:link rel="alternate" hreflang="zh-cn" href="https://yifeitao.com/the-principle-of-probability-of-destiny/"/><xhtml:link rel="alternate" hreflang="en" href="https://yifeitao.com/en/the-principle-of-probability-of-destiny/"/><xhtml:link rel="alternate" hreflang="ja" href="https://yifeitao.com/ja/the-principle-of-probability-of-destiny/"/></url><url><loc>https://yifeitao.com/ja/tags/%E4%BA%BA%E7%94%9F/</loc><lastmod>2017-01-04T00:00:00+00:00</lastmod><xhtml:link rel="alternate" hreflang="zh-cn" href="https://yifeitao.com/tags/%E4%BA%BA%E7%94%9F/"/><xhtml:link rel="alternate" hreflang="ja" href="https://yifeitao.com/ja/tags/%E4%BA%BA%E7%94%9F/"/></url><url><loc>https://yifeitao.com/ja/tags/%E3%82%A4%E3%83%B3%E3%82%BF%E3%83%BC%E3%83%8D%E3%83%83%E3%83%88/</loc><lastmod>2017-01-02T00:00:00+00:00</lastmod></url><url><loc>https://yifeitao.com/ja/3-ways-to-get-information-on-internet/</loc><lastmod>2017-01-02T00:00:00+00:00</lastmod><xhtml:link rel="alternate" hreflang="zh-cn" href="https://yifeitao.com/3-ways-to-get-information-on-internet/"/><xhtml:link rel="alternate" hreflang="en" href="https://yifeitao.com/en/3-ways-to-get-information-on-internet/"/><xhtml:link rel="alternate" hreflang="ja" href="https://yifeitao.com/ja/3-ways-to-get-information-on-internet/"/></url><url><loc>https://yifeitao.com/ja/tags/%E6%83%85%E5%A0%B1%E5%8F%8E%E9%9B%86/</loc><lastmod>2017-01-02T00:00:00+00:00</lastmod></url><url><loc>https://yifeitao.com/ja/debug-is-technology/</loc><lastmod>2016-12-24T22:19:17+08:00</lastmod><xhtml:link rel="alternate" hreflang="zh-cn" href="https://yifeitao.com/debug-is-technology/"/><xhtml:link rel="alternate" hreflang="en" href="https://yifeitao.com/en/debug-is-technology/"/><xhtml:link rel="alternate" hreflang="ja" href="https://yifeitao.com/ja/debug-is-technology/"/></url><url><loc>https://yifeitao.com/ja/tags/%E3%83%87%E3%83%90%E3%83%83%E3%82%B0/</loc><lastmod>2016-12-24T22:19:17+08:00</lastmod></url><url><loc>https://yifeitao.com/ja/about/</loc><xhtml:link rel="alternate" hreflang="zh-cn" href="https://yifeitao.com/about/"/><xhtml:link rel="alternate" hreflang="en" href="https://yifeitao.com/en/about/"/><xhtml:link rel="alternate" hreflang="ja" href="https://yifeitao.com/ja/about/"/></url><url><loc>https://yifeitao.com/ja/slides/</loc><xhtml:link rel="alternate" hreflang="zh-cn" href="https://yifeitao.com/slides/"/><xhtml:link rel="alternate" hreflang="en" href="https://yifeitao.com/en/slides/"/><xhtml:link rel="alternate" hreflang="ja" href="https://yifeitao.com/ja/slides/"/></url></urlset>