I'm Sumit Garg. I work on Search systems at Microsoft, where I focus on Azure AI Search — information retrieval, vector search, hybrid search, RAG systems, and evaluation methodology.
This site is where I collect ideas worth keeping. The Library is curated articles on mental models, decision-making, and clear thinking — annotated and AI-enriched with summaries and concept mapping. Thoughts are original essays on systems, learning, and making sense of complexity. Explainers are interactive visual walkthroughs of physics, math, and AI concepts.
The name "Against Entropy" comes from the observation that everything tends toward disorder. Maintaining any system — your health, your knowledge, your code — requires continuous effort. This site is part of that effort.