<?xml version="1.0" encoding="utf-8" standalone="yes"?><rss version="2.0" xmlns:atom="http://www.w3.org/2005/Atom"><channel><title>Henrik Selje Bygnes</title><link>https://henriksb.com/</link><description>Recent content on Henrik Selje Bygnes</description><generator>Hugo -- gohugo.io</generator><language>en</language><managingEditor>henriksb@pm.me (Henrik Selje Bygnes)</managingEditor><webMaster>henriksb@pm.me (Henrik Selje Bygnes)</webMaster><copyright>Copyright 2026 Henrik Selje Bygnes</copyright><lastBuildDate>Sun, 09 Aug 2026 00:00:00 +0000</lastBuildDate><atom:link href="https://henriksb.com/index.xml" rel="self" type="application/rss+xml"/><item><title>The Code Book</title><link>https://henriksb.com/misc/books/the-code-book/</link><pubDate>Mon, 01 Jan 0001 00:00:00 +0000</pubDate><author>henriksb@pm.me (Henrik Selje Bygnes)</author><guid>https://henriksb.com/misc/books/the-code-book/</guid><description/></item><item><title>The Art of Invisibility</title><link>https://henriksb.com/misc/books/the-art-of-invisibility/</link><pubDate>Mon, 01 Jan 0001 00:00:00 +0000</pubDate><author>henriksb@pm.me (Henrik Selje Bygnes)</author><guid>https://henriksb.com/misc/books/the-art-of-invisibility/</guid><description/></item><item><title>If Anyone Builds It, Everyone Dies</title><link>https://henriksb.com/misc/books/if-anyone-builds-it-everyone-dies/</link><pubDate>Mon, 01 Jan 0001 00:00:00 +0000</pubDate><author>henriksb@pm.me (Henrik Selje Bygnes)</author><guid>https://henriksb.com/misc/books/if-anyone-builds-it-everyone-dies/</guid><description/></item><item><title>Organic Chemistry as a Second Language</title><link>https://henriksb.com/misc/books/organic-chemistry-as-a-second-language/</link><pubDate>Mon, 01 Jan 0001 00:00:00 +0000</pubDate><author>henriksb@pm.me (Henrik Selje Bygnes)</author><guid>https://henriksb.com/misc/books/organic-chemistry-as-a-second-language/</guid><description/></item><item><title>Introduction to Neuropsychopharmacology</title><link>https://henriksb.com/misc/books/introduction-to-neuropsychopharmacology/</link><pubDate>Mon, 01 Jan 0001 00:00:00 +0000</pubDate><author>henriksb@pm.me (Henrik Selje Bygnes)</author><guid>https://henriksb.com/misc/books/introduction-to-neuropsychopharmacology/</guid><description/></item><item><title>The Organic Chem Lab Survival Manual</title><link>https://henriksb.com/misc/books/the-organic-chem-lab-survival-manual/</link><pubDate>Mon, 01 Jan 0001 00:00:00 +0000</pubDate><author>henriksb@pm.me (Henrik Selje Bygnes)</author><guid>https://henriksb.com/misc/books/the-organic-chem-lab-survival-manual/</guid><description/></item><item><title>Ghost in the Wires</title><link>https://henriksb.com/misc/books/ghost-in-the-wires/</link><pubDate>Mon, 01 Jan 0001 00:00:00 +0000</pubDate><author>henriksb@pm.me (Henrik Selje Bygnes)</author><guid>https://henriksb.com/misc/books/ghost-in-the-wires/</guid><description/></item><item><title>American Kingpin</title><link>https://henriksb.com/misc/books/american-kingpin/</link><pubDate>Mon, 01 Jan 0001 00:00:00 +0000</pubDate><author>henriksb@pm.me (Henrik Selje Bygnes)</author><guid>https://henriksb.com/misc/books/american-kingpin/</guid><description/></item><item><title>AI 2027</title><link>https://henriksb.com/misc/books/ai-2027/</link><pubDate>Mon, 01 Jan 0001 00:00:00 +0000</pubDate><author>henriksb@pm.me (Henrik Selje Bygnes)</author><guid>https://henriksb.com/misc/books/ai-2027/</guid><description/></item><item><title>AI 2027 prediction tracker</title><link>https://henriksb.com/misc/books/ai-2027-tracker/</link><pubDate>Mon, 01 Jan 0001 00:00:00 +0000</pubDate><author>henriksb@pm.me (Henrik Selje Bygnes)</author><guid>https://henriksb.com/misc/books/ai-2027-tracker/</guid><description/></item><item><title>METR time horizons</title><link>https://henriksb.com/misc/books/metr-time-horizons/</link><pubDate>Mon, 01 Jan 0001 00:00:00 +0000</pubDate><author>henriksb@pm.me (Henrik Selje Bygnes)</author><guid>https://henriksb.com/misc/books/metr-time-horizons/</guid><description/></item><item><title>Species</title><link>https://henriksb.com/misc/books/species/</link><pubDate>Mon, 01 Jan 0001 00:00:00 +0000</pubDate><author>henriksb@pm.me (Henrik Selje Bygnes)</author><guid>https://henriksb.com/misc/books/species/</guid><description/></item><item><title>Tools</title><link>https://henriksb.com/misc/tools/</link><pubDate>Tue, 04 Aug 2026 00:00:00 +0000</pubDate><author>henriksb@pm.me (Henrik Selje Bygnes)</author><guid>https://henriksb.com/misc/tools/</guid><description>Local-first tools for the things I keep working out by hand: file signatures, elemental mineral content, half-life accumulation, and reading a study honestly.</description></item><item><title>The Man Who Got Addicted to Heroin in Real Time</title><link>https://henriksb.com/health/addiction-in-real-time/</link><pubDate>Sat, 25 Jul 2026 00:00:00 +0000</pubDate><author>henriksb@pm.me (Henrik Selje Bygnes)</author><guid>https://henriksb.com/health/addiction-in-real-time/</guid><description>BloodshotEyes came to a Norwegian forum asking how to inject heroin. Over the next four years, strangers watched his experiment become dependence, relapse, treatment, and despair.</description></item><item><title>Building</title><link>https://henriksb.com/now/</link><pubDate>Sat, 25 Jul 2026 00:00:00 +0200</pubDate><author>henriksb@pm.me (Henrik Selje Bygnes)</author><guid>https://henriksb.com/now/</guid><description>Currently building a nutrition app for biohackers, starting with a food database that goes far beyond calories and macros.</description></item><item><title>"I Saw This One Study" - Why You're Reading Studies Wrong (And Why It Matters)</title><link>https://henriksb.com/health/research/reading-studies/</link><pubDate>Sat, 18 Jul 2026 00:00:00 +0000</pubDate><author>henriksb@pm.me (Henrik Selje Bygnes)</author><guid>https://henriksb.com/health/research/reading-studies/</guid><description>A rant about how people actually use studies: reading the headline, skipping the methods, and confusing confidence with understanding. On confounders, trial groups, funding bias, why &amp;rsquo;no evidence&amp;rsquo; isn&amp;rsquo;t &amp;lsquo;dangerous&amp;rsquo;, and why anecdotes are early signals worth taking seriously.</description></item><item><title>Magnesium - The Most Overlooked Deficiency</title><link>https://henriksb.com/health/drugs-supplements/magnesium/</link><pubDate>Fri, 15 May 2026 00:00:00 +0000</pubDate><author>henriksb@pm.me (Henrik Selje Bygnes)</author><guid>https://henriksb.com/health/drugs-supplements/magnesium/</guid><description>A slightly angry magnesium deep-dive: deficiency and soil, elemental magnesium, labels that make no sense, the real reason oxide absorbs poorly, and where studies and anecdotes each belong.</description></item><item><title>PPAP HCl - A Functional Stimulant Without the Push?</title><link>https://henriksb.com/health/drugs-supplements/ppap/</link><pubDate>Sun, 05 Apr 2026 00:00:00 +0000</pubDate><author>henriksb@pm.me (Henrik Selje Bygnes)</author><guid>https://henriksb.com/health/drugs-supplements/ppap/</guid><description>A personal, harm-aware note on PPAP HCl: mechanism, effect profile, self-experimentation bias, and why productive does not automatically mean safe.</description><media:content xmlns:media="http://search.yahoo.com/mrss/" url="https://henriksb.com/health/drugs-supplements/ppap/featured.webp"/></item><item><title>Projects</title><link>https://henriksb.com/misc/software/</link><pubDate>Fri, 03 Apr 2026 00:00:00 +0000</pubDate><author>henriksb@pm.me (Henrik Selje Bygnes)</author><guid>https://henriksb.com/misc/software/</guid><description>My public projects grouped by what they do, and the small gists worth keeping.</description></item><item><title>The Inevitable Future - AI Is Already Running the Show</title><link>https://henriksb.com/cyber_hacking/ai/the-inevitable-future/</link><pubDate>Tue, 10 Mar 2026 00:00:00 +0000</pubDate><author>henriksb@pm.me (Henrik Selje Bygnes)</author><guid>https://henriksb.com/cyber_hacking/ai/the-inevitable-future/</guid><description>A blunt essay on AI as a present-tense force: alignment, acceleration, agency, consciousness, and the uncomfortable possibility that joining the system becomes the only realistic move.</description><media:content xmlns:media="http://search.yahoo.com/mrss/" url="https://henriksb.com/cyber_hacking/ai/the-inevitable-future/featured.webp"/></item><item><title>Perturbation Framework - Drug Identification Based on Response</title><link>https://henriksb.com/health/research/bioframework/</link><pubDate>Wed, 04 Mar 2026 00:00:00 +0000</pubDate><author>henriksb@pm.me (Henrik Selje Bygnes)</author><guid>https://henriksb.com/health/research/bioframework/</guid><description>A practical framework for reading the body as a noisy sensor array: pupils, sweating, gut sounds, reflexes, vitals, HRV, confounders, and the limits of self-observation.</description><media:content xmlns:media="http://search.yahoo.com/mrss/" url="https://henriksb.com/health/research/bioframework/featured.webp"/></item><item><title>Addiction</title><link>https://henriksb.com/health/addiction_story/</link><pubDate>Sun, 01 Feb 2026 00:00:00 +0000</pubDate><author>henriksb@pm.me (Henrik Selje Bygnes)</author><guid>https://henriksb.com/health/addiction_story/</guid><description>A personal account of addiction, self-deception, replacement, loneliness, and why understanding the mechanism does not make you immune to it.</description><media:content xmlns:media="http://search.yahoo.com/mrss/" url="https://henriksb.com/health/addiction_story/featured.webp"/></item><item><title>Hey, I'm Henrik Selje Bygnes</title><link>https://henriksb.com/about/</link><pubDate>Sat, 31 Jan 2026 00:00:00 +0000</pubDate><author>henriksb@pm.me (Henrik Selje Bygnes)</author><guid>https://henriksb.com/about/</guid><description>No content strategy and no manufactured niche. Just a hacker&amp;rsquo;s public notebook, built from whatever I am obsessed with enough to investigate.</description></item><item><title>When ChatGPT Got Smarter and Harder to Use</title><link>https://henriksb.com/cyber_hacking/ai/chatgpt/</link><pubDate>Sun, 05 Oct 2025 00:00:00 +0000</pubDate><author>henriksb@pm.me (Henrik Selje Bygnes)</author><guid>https://henriksb.com/cyber_hacking/ai/chatgpt/</guid><description>A personal argument for clearer AI safety boundaries: use context, cite the evidence, give the safe part of the answer, and do not demand an identity profile in return.</description><media:content xmlns:media="http://search.yahoo.com/mrss/" url="https://henriksb.com/cyber_hacking/ai/chatgpt/featured.webp"/></item><item><title>Predictable Random</title><link>https://henriksb.com/cyber_hacking/capture-the-flag/predictable-random/</link><pubDate>Mon, 01 Jul 2024 00:00:00 +0000</pubDate><author>henriksb@pm.me (Henrik Selje Bygnes)</author><guid>https://henriksb.com/cyber_hacking/capture-the-flag/predictable-random/</guid><description>A 1753CTF solve showing why ordinary PRNGs are useful but wrong for secrets, how a predictable seed breaks XOR encryption, and what CSPRNGs do differently.</description></item><item><title>Credit Card Security</title><link>https://henriksb.com/cyber_hacking/credit_card_security/</link><pubDate>Tue, 15 Aug 2023 00:00:00 +0000</pubDate><author>henriksb@pm.me (Henrik Selje Bygnes)</author><guid>https://henriksb.com/cyber_hacking/credit_card_security/</guid><description>A defensive guide to how credit-card fraud works in practice: leaked numbers, social media exposure, NFC myths, physical theft, dark-web resale, and realistic protection.</description><media:content xmlns:media="http://search.yahoo.com/mrss/" url="https://henriksb.com/cyber_hacking/credit_card_security/featured.webp"/></item><item><title>File Spoofing</title><link>https://henriksb.com/cyber_hacking/file-spoofing/</link><pubDate>Wed, 15 Aug 2018 00:00:00 +0000</pubDate><author>henriksb@pm.me (Henrik Selje Bygnes)</author><guid>https://henriksb.com/cyber_hacking/file-spoofing/</guid><description>A practical look at RTLO, shortcuts, misleading extensions, NTFS streams, archives, and polyglots through the thing they all exploit: disagreement about what a file actually is.</description><media:content xmlns:media="http://search.yahoo.com/mrss/" url="https://henriksb.com/cyber_hacking/file-spoofing/featured.webp"/></item></channel></rss>