<?xml version="1.0" encoding="UTF-8"?><rss version="2.0"><channel><title>Qiwen Zhao — Writing &amp; Field Notes</title><description>Essays on AI systems, endurance training, and Stoic philosophy by Qiwen Zhao.</description><link>https://qiwenzhao.com/</link><language>en-us</language><item><title>Principles for Building Agentic &amp; AI-Native Applications</title><link>https://qiwenzhao.com/writing/building-ai-native-interfaces/</link><guid isPermaLink="true">https://qiwenzhao.com/writing/building-ai-native-interfaces/</guid><description>Moving past chatbot wrappers: how streaming state, real-time voice, and agentic workflows change UI architecture.</description><pubDate>Fri, 14 Aug 2026 00:00:00 GMT</pubDate></item><item><title>Building the Aerobic Engine: Zone 2 Training &amp; Metabolic Efficiency</title><link>https://qiwenzhao.com/writing/zone-2-endurance-engine/</link><guid isPermaLink="true">https://qiwenzhao.com/writing/zone-2-endurance-engine/</guid><description>Why low-intensity volume builds high-intensity resilience. Lessons from the road, heart rate telemetry, and nutritional periodization.</description><pubDate>Tue, 28 Jul 2026 00:00:00 GMT</pubDate></item><item><title>An Internal Locus: A Stoic Protocol for Building in Uncertainty</title><link>https://qiwenzhao.com/writing/stoic-operating-system/</link><guid isPermaLink="true">https://qiwenzhao.com/writing/stoic-operating-system/</guid><description>Applying Marcus Aurelius and Epictetus to engineering and entrepreneurship: separating control from concern, and turning obstacles into the path.</description><pubDate>Fri, 19 Jun 2026 00:00:00 GMT</pubDate></item></channel></rss>