I was looking to write a spam filter and came across Paul Graham&#x27;s essays.  I read them all, then produced a graphic of relationships between them:<p><a href="http:&#x2F;&#x2F;www.solipsys.co.uk&#x2F;new&#x2F;PaulGrahamEssays.html" rel="nofollow">http:&#x2F;&#x2F;www.solipsys.co.uk&#x2F;new&#x2F;PaulGrahamEssays.html</a><p>I haven&#x27;t updated that in ages - not sure I still have the code for it.<p>I send a link to that to PG, and he said I should submit it to HN.<p>So I did.<p>Original: <a href="https:&#x2F;&#x2F;news.ycombinator.com&#x2F;item?id=368657" rel="nofollow">https:&#x2F;&#x2F;news.ycombinator.com&#x2F;item?id=368657</a><p>Revisited: <a href="https:&#x2F;&#x2F;news.ycombinator.com&#x2F;item?id=397408" rel="nofollow">https:&#x2F;&#x2F;news.ycombinator.com&#x2F;item?id=397408</a><p>Wow. 2008&#x2F;11&#x2F;18. Over 7 years ago.