# Fillip Kosorukov: Real Estate Investor \| Momentum Trader \| Researcher

> Fillip Kosorukov builds LocalMention\.io and runs Resilient Capital LLC\. Momentum trader\. Published UNM psychology researcher\.

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## Pages
- [Trading Process and Research Notes](https://fillipkosorukov.net/trading/)
- [About Fillip Kosorukov — Founder, Researcher, Solo Builder](https://fillipkosorukov.net/about/)
- [Home](https://fillipkosorukov.net/)
- [Video Walkthroughs and Project Notes by Fillip Kosorukov](https://fillipkosorukov.net/video-walkthroughs/)
- [Blog](https://fillipkosorukov.net/blog/)

## Posts
- [From Behavioral Science to Software: How Psychology Shapes the Products I Build](https://fillipkosorukov.net/2026/03/28/behavioral-science-software-psychology-products/)
- [Batching a PostgreSQL Preview: 500 Statements to One](https://fillipkosorukov.net/2026/09/09/batching-a-postgresql-preview-500-statements-to-one/): How PostgreSQL arrays and ordinality preserved original positions in a stored\-row preview\.
- [A Git Merge Rule for Append\-Only AI Changelogs](https://fillipkosorukov.net/2026/07/04/a-git-merge-rule-for-append-only-ai-changelogs/): How a scoped \.gitattributes rule keeps ledger\-style changelogs from turning harmless appends into manual conflicts\.
- [The "Cheaper" LLM That Cost Four Times as Much](https://fillipkosorukov.net/2026/06/23/the-cheaper-llm-that-cost-four-times-as-much/): I swapped Opus for a budget model to cut costs\. It crashed twice, ran ten times slower, and the bill went up, for reasons that never show up on a pricing page\.
- [The Acceptance Test That Failed Before the Feature Existed](https://fillipkosorukov.net/2026/06/12/the-acceptance-test-that-failed-before-the-feature-existed/): Two requirements I wrote myself, weeks apart, that could never both hold on a busy market day\.

## Accomplishments
- [Dean’s List Honoree](https://fillipkosorukov.net/accomplishment/deans-list-honoree/)
- [Research Assistant](https://fillipkosorukov.net/accomplishment/research-assistant/)
- [Summa Cum Laude Graduate](https://fillipkosorukov.net/accomplishment/summa-cum-laude-graduate/)
- [Published Research Contributor](https://fillipkosorukov.net/accomplishment/published-research-contributor/)
- [Addiction Research Contributor](https://fillipkosorukov.net/accomplishment/addiction-research-contributor/)

## Optional
- [Sitemap index](https://fillipkosorukov.net/sitemap_index.xml)