<?xml version="1.0" encoding="UTF-8"?><rss version="2.0"><channel><title>Marcus Catsaras | Blog</title><description>Essays by Marcus Catsaras on markets, energy and how things work.</description><link>https://marcuscatsaras.net/</link><item><title>“Therefore”</title><link>https://marcuscatsaras.net/blog/therefore/</link><guid isPermaLink="true">https://marcuscatsaras.net/blog/therefore/</guid><description>What South Park has to say about business strategy.</description><pubDate>Sun, 11 Oct 2026 00:00:00 GMT</pubDate></item><item><title>Don’t Mistake Beta for Alpha</title><link>https://marcuscatsaras.net/blog/dont-mistake-beta-for-alpha/</link><guid isPermaLink="true">https://marcuscatsaras.net/blog/dont-mistake-beta-for-alpha/</guid><description>Beta check yo self before you wreck yo self</description><pubDate>Fri, 02 Oct 2026 00:00:00 GMT</pubDate></item></channel></rss>