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

From the HN 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. ... Please don't complain that a submission is inappropriate. If a story is spam or off-topic, flag it. ... If you flag, please don't also comment that you did." [EDIT] By the obituary, this person was a master of his esoteric craft as well a talented educator and I found it worthwhile to take a moment to read about his life and to honor his passing.