<?xml version="1.0" encoding="utf-8" standalone="yes"?>
<rss version="2.0" xmlns:atom="http://www.w3.org/2005/Atom">
  <channel>
    <title>Digital Life: From First Principles on Programmer.ie: Modern AI programming</title>
    <link>http://programmer.ie/books/digital-life/</link>
    <description>Recent content in Digital Life: From First Principles on Programmer.ie: Modern AI programming</description>
    <generator>Hugo</generator>
    <language>en-us</language>
    <lastBuildDate>Tue, 11 Aug 2026 01:34:00 +0100</lastBuildDate>
    <atom:link href="http://programmer.ie/books/digital-life/index.xml" rel="self" type="application/rss+xml" />
    <item>
      <title>Digital Life 05: Kill It</title>
      <link>http://programmer.ie/books/digital-life/05-kill-it/</link>
      <pubDate>Tue, 11 Aug 2026 01:34:00 +0100</pubDate>
      <guid>http://programmer.ie/books/digital-life/05-kill-it/</guid>
      <description>&lt;h1 id=&#34;digital-life-05-kill-it&#34;&gt;Digital Life 05: Kill It&lt;/h1&gt;&#xA;&lt;p&gt;We have been too kind to our systems.&lt;/p&gt;&#xA;&lt;p&gt;So far we have:&lt;/p&gt;&#xA;&lt;ul&gt;&#xA;&lt;li&gt;initialized them carefully,&lt;/li&gt;&#xA;&lt;li&gt;given them clean environments,&lt;/li&gt;&#xA;&lt;li&gt;watched them evolve,&lt;/li&gt;&#xA;&lt;li&gt;selected examples that behave interestingly,&lt;/li&gt;&#xA;&lt;li&gt;and mostly left them alone.&lt;/li&gt;&#xA;&lt;/ul&gt;&#xA;&lt;p&gt;That is a dangerous way to study anything that looks life-like.&lt;/p&gt;&#xA;&lt;p&gt;A structure that persists when nothing interferes with it may be interesting.&lt;/p&gt;&#xA;&lt;p&gt;But biological systems do something harder.&lt;/p&gt;&#xA;&lt;p&gt;They persist in a world that keeps interfering with them.&lt;/p&gt;</description>
    </item>
    <item>
      <title>Digital Life 04: When Does a Pattern Become a Thing?</title>
      <link>http://programmer.ie/books/digital-life/04-when-does-a-pattern-become-a-thing/</link>
      <pubDate>Tue, 11 Aug 2026 01:26:00 +0100</pubDate>
      <guid>http://programmer.ie/books/digital-life/04-when-does-a-pattern-become-a-thing/</guid>
      <description>&lt;h1 id=&#34;digital-life-04-when-does-a-pattern-become-a-thing&#34;&gt;Digital Life 04: When Does a Pattern Become a Thing?&lt;/h1&gt;&#xA;&lt;p&gt;Rule 30 gave us structure.&lt;/p&gt;&#xA;&lt;p&gt;But it did not obviously give us a &lt;strong&gt;thing&lt;/strong&gt;.&lt;/p&gt;&#xA;&lt;p&gt;The pattern expanded.&lt;/p&gt;&#xA;&lt;p&gt;It changed.&lt;/p&gt;&#xA;&lt;p&gt;Differences propagated.&lt;/p&gt;&#xA;&lt;p&gt;Interesting global behavior appeared.&lt;/p&gt;&#xA;&lt;p&gt;But if I pointed at one region and asked:&lt;/p&gt;&#xA;&lt;blockquote&gt;&#xA;&lt;p&gt;Is that the same object ten generations later?&lt;/p&gt;&lt;/blockquote&gt;&#xA;&lt;p&gt;the answer was not obvious.&lt;/p&gt;&#xA;&lt;p&gt;So let&amp;rsquo;s change systems.&lt;/p&gt;&#xA;&lt;p&gt;Not because Conway&amp;rsquo;s Game of Life is more sophisticated.&lt;/p&gt;</description>
    </item>
    <item>
      <title>Digital Life 03: The First Surprise</title>
      <link>http://programmer.ie/books/digital-life/03-the-first-surprise/</link>
      <pubDate>Tue, 11 Aug 2026 01:19:00 +0100</pubDate>
      <guid>http://programmer.ie/books/digital-life/03-the-first-surprise/</guid>
      <description>&lt;p&gt;We ended the last chapter by changing one number.&lt;/p&gt;&#xA;&lt;div class=&#34;highlight&#34;&gt;&lt;pre tabindex=&#34;0&#34; style=&#34;color:#f8f8f2;background-color:#272822;-moz-tab-size:4;-o-tab-size:4;tab-size:4;&#34;&gt;&lt;code class=&#34;language-python&#34; data-lang=&#34;python&#34;&gt;&lt;span style=&#34;display:flex;&#34;&gt;&lt;span&gt;rule &lt;span style=&#34;color:#f92672&#34;&gt;=&lt;/span&gt; &lt;span style=&#34;color:#ae81ff&#34;&gt;22&lt;/span&gt;&#xA;&lt;/span&gt;&lt;/span&gt;&lt;/code&gt;&lt;/pre&gt;&lt;/div&gt;&lt;p&gt;became:&lt;/p&gt;&#xA;&lt;div class=&#34;highlight&#34;&gt;&lt;pre tabindex=&#34;0&#34; style=&#34;color:#f8f8f2;background-color:#272822;-moz-tab-size:4;-o-tab-size:4;tab-size:4;&#34;&gt;&lt;code class=&#34;language-python&#34; data-lang=&#34;python&#34;&gt;&lt;span style=&#34;display:flex;&#34;&gt;&lt;span&gt;rule &lt;span style=&#34;color:#f92672&#34;&gt;=&lt;/span&gt; &lt;span style=&#34;color:#ae81ff&#34;&gt;30&lt;/span&gt;&#xA;&lt;/span&gt;&lt;/span&gt;&lt;/code&gt;&lt;/pre&gt;&lt;/div&gt;&lt;p&gt;Nothing else changed.&lt;/p&gt;&#xA;&lt;p&gt;Same world.&lt;/p&gt;&#xA;&lt;p&gt;Same single active cell.&lt;/p&gt;&#xA;&lt;p&gt;Same three-cell neighborhood.&lt;/p&gt;&#xA;&lt;p&gt;Same synchronous update.&lt;/p&gt;&#xA;&lt;p&gt;Same periodic boundary.&lt;/p&gt;&#xA;&lt;p&gt;Same eight-bit lookup mechanism.&lt;/p&gt;&#xA;&lt;p&gt;Only the rule changed.&lt;/p&gt;&#xA;&lt;p&gt;And the spacetime diagram stopped looking simple.&lt;/p&gt;&#xA;&lt;p&gt;&lt;img src=&#34;http://programmer.ie/images/books/digital-life/ch03-rule30-hero.png&#34; alt=&#34;Rule 30 from a single active cell&#34;&gt;&lt;/p&gt;&#xA;&lt;p&gt;There is visible structure on the left.&lt;/p&gt;&#xA;&lt;p&gt;There is irregularity on the right.&lt;/p&gt;&#xA;&lt;p&gt;There are repeating fragments.&lt;/p&gt;&#xA;&lt;p&gt;There are regions that look almost patterned and then break apart.&lt;/p&gt;</description>
    </item>
    <item>
      <title>Digital Life 02: Remove Almost Everything</title>
      <link>http://programmer.ie/books/digital-life/02-remove-almost-everything/</link>
      <pubDate>Tue, 11 Aug 2026 01:08:00 +0100</pubDate>
      <guid>http://programmer.ie/books/digital-life/02-remove-almost-everything/</guid>
      <description>&lt;p&gt;In the previous chapter we started with something complicated.&lt;/p&gt;&#xA;&lt;p&gt;A continuous field.&lt;/p&gt;&#xA;&lt;p&gt;A smooth neighborhood.&lt;/p&gt;&#xA;&lt;p&gt;A growth process.&lt;/p&gt;&#xA;&lt;p&gt;Localized structures that moved through space.&lt;/p&gt;&#xA;&lt;p&gt;Patterns that looked disturbingly creature-like.&lt;/p&gt;&#xA;&lt;p&gt;That was useful because it gave us a mystery.&lt;/p&gt;&#xA;&lt;p&gt;Now we are going to destroy almost all of it.&lt;/p&gt;&#xA;&lt;p&gt;Not gradually.&lt;/p&gt;&#xA;&lt;p&gt;Aggressively.&lt;/p&gt;&#xA;&lt;p&gt;We want to know:&lt;/p&gt;&#xA;&lt;blockquote&gt;&#xA;&lt;p&gt;&lt;strong&gt;How little machinery can remain before interesting organization disappears?&lt;/strong&gt;&lt;/p&gt;&lt;/blockquote&gt;&#xA;&lt;p&gt;Start with the kind of system we saw in Lenia.&lt;/p&gt;</description>
    </item>
    <item>
      <title>Digital Life 01: Look at This Thing</title>
      <link>http://programmer.ie/books/digital-life/01-look-at-this-thing/</link>
      <pubDate>Tue, 11 Aug 2026 01:06:00 +0100</pubDate>
      <guid>http://programmer.ie/books/digital-life/01-look-at-this-thing/</guid>
      <description>&lt;h1 id=&#34;digital-life-01-look-at-this-thing&#34;&gt;Digital Life 01: Look at This Thing&lt;/h1&gt;&#xA;&lt;p&gt;Don&amp;rsquo;t read anything yet.&lt;/p&gt;&#xA;&lt;p&gt;Watch this.&lt;/p&gt;&#xA;&lt;!--&#xA;TODO VISUAL:&#xA;Full-width animated Lenia or Flow-Lenia organism.&#xA;&#xA;Prefer:&#xA;- localized organism&#xA;- visible locomotion or deformation&#xA;- no explanatory labels&#xA;- dark/neutral background&#xA;- several seconds of uninterrupted motion&#xA;&#xA;Caption should initially be minimal:&#xA;&#34;One state of a continuous cellular automaton evolving through time.&#34;&#xA;--&gt;&#xA;&lt;p&gt;Something is moving.&lt;/p&gt;&#xA;&lt;p&gt;It appears to have a boundary.&lt;/p&gt;&#xA;&lt;p&gt;Different parts of it seem to behave differently.&lt;/p&gt;</description>
    </item>
    <item>
      <title>Digital Life 00: What Would Digital Life Mean?</title>
      <link>http://programmer.ie/books/digital-life/00-what-is-digital-life/</link>
      <pubDate>Tue, 11 Aug 2026 00:31:00 +0100</pubDate>
      <guid>http://programmer.ie/books/digital-life/00-what-is-digital-life/</guid>
      <description>&lt;h1 id=&#34;digital-life-00-what-would-digital-life-mean&#34;&gt;Digital Life 00: What Would Digital Life Mean?&lt;/h1&gt;&#xA;&lt;p&gt;Suppose we wanted to build life in software.&lt;/p&gt;&#xA;&lt;p&gt;Not simulate a bird.&lt;/p&gt;&#xA;&lt;p&gt;Not animate a creature.&lt;/p&gt;&#xA;&lt;p&gt;Not create an AI assistant and give it a name.&lt;/p&gt;&#xA;&lt;p&gt;Something more fundamental.&lt;/p&gt;&#xA;&lt;p&gt;A computational system that begins to exhibit properties we associate with living things:&lt;/p&gt;&#xA;&lt;div class=&#34;highlight&#34;&gt;&lt;pre tabindex=&#34;0&#34; style=&#34;color:#f8f8f2;background-color:#272822;-moz-tab-size:4;-o-tab-size:4;tab-size:4;&#34;&gt;&lt;code class=&#34;language-text&#34; data-lang=&#34;text&#34;&gt;&lt;span style=&#34;display:flex;&#34;&gt;&lt;span&gt;structure&#xA;&lt;/span&gt;&lt;/span&gt;&lt;span style=&#34;display:flex;&#34;&gt;&lt;span&gt;persistence&#xA;&lt;/span&gt;&lt;/span&gt;&lt;span style=&#34;display:flex;&#34;&gt;&lt;span&gt;response&#xA;&lt;/span&gt;&lt;/span&gt;&lt;span style=&#34;display:flex;&#34;&gt;&lt;span&gt;adaptation&#xA;&lt;/span&gt;&lt;/span&gt;&lt;span style=&#34;display:flex;&#34;&gt;&lt;span&gt;repair&#xA;&lt;/span&gt;&lt;/span&gt;&lt;span style=&#34;display:flex;&#34;&gt;&lt;span&gt;memory&#xA;&lt;/span&gt;&lt;/span&gt;&lt;span style=&#34;display:flex;&#34;&gt;&lt;span&gt;inheritance&#xA;&lt;/span&gt;&lt;/span&gt;&lt;span style=&#34;display:flex;&#34;&gt;&lt;span&gt;evolution&#xA;&lt;/span&gt;&lt;/span&gt;&lt;/code&gt;&lt;/pre&gt;&lt;/div&gt;&lt;p&gt;The obvious temptation is to start implementing those words.&lt;/p&gt;&#xA;&lt;p&gt;We could create:&lt;/p&gt;</description>
    </item>
    <item>
      <title></title>
      <link>http://programmer.ie/books/digital-life/06-can-it-make-another-one/</link>
      <pubDate>Mon, 01 Jan 0001 00:00:00 +0000</pubDate>
      <guid>http://programmer.ie/books/digital-life/06-can-it-make-another-one/</guid>
      <description></description>
    </item>
    <item>
      <title></title>
      <link>http://programmer.ie/books/digital-life/07-evolution-without-life/</link>
      <pubDate>Mon, 01 Jan 0001 00:00:00 +0000</pubDate>
      <guid>http://programmer.ie/books/digital-life/07-evolution-without-life/</guid>
      <description></description>
    </item>
    <item>
      <title></title>
      <link>http://programmer.ie/books/digital-life/08-now-prove-it/</link>
      <pubDate>Mon, 01 Jan 0001 00:00:00 +0000</pubDate>
      <guid>http://programmer.ie/books/digital-life/08-now-prove-it/</guid>
      <description></description>
    </item>
  </channel>
</rss>
