<?xml version="1.0" encoding="utf-8" standalone="yes"?><rss version="2.0" xmlns:atom="http://www.w3.org/2005/Atom"><channel><title>Position Sizing on FX Backtest Diary</title><link>https://etherpoc.com/en/tags/position-sizing/</link><description>Recent content in Position Sizing on FX Backtest Diary</description><generator>Hugo</generator><language>en</language><lastBuildDate>Fri, 24 Jul 2026 00:00:00 +0000</lastBuildDate><atom:link href="https://etherpoc.com/en/tags/position-sizing/index.xml" rel="self" type="application/rss+xml"/><item><title>My AI position sizer lost to a shuffled placebo, and six more smart ideas died with it</title><link>https://etherpoc.com/en/posts/smart-sizing-placebo/</link><pubDate>Fri, 24 Jul 2026 00:00:00 +0000</pubDate><guid>https://etherpoc.com/en/posts/smart-sizing-placebo/</guid><description>&lt;p&gt;A reinforcement learner studied my trading system&amp;rsquo;s history and carefully learned how much leverage to use in each market state. Its result: +0.72% per month. Then I took its learned rules, shuffled them into deliberate nonsense, and ran the test again: +1.57% per month. The intelligence was worth less than nothing.&lt;/p&gt;</description></item></channel></rss>