From the site guidelines: > On-Topic: Anything that good hackers would find interesting. That includes more than hacking and startups. If you had to reduce it

From the site guidelines: > On-Topic: Anything that good hackers would find interesting. That includes more than hacking and startups. If you had to reduce it to a sentence, the answer might be: anything that gratifies one's intellectual curiosity. It appears to have gratified at least 159 people's intellectual curiosity (at the time of making this post).