I'm looking for an article/paper I found on HackerNews (maybe in 2018 or 2019) that someone posted that was some description of a UNIX version (7 I think?) and in the introduction they mentioned it being the last version of UNIX that was small enough for one person to keep all the code in their head.<p>Does anyone know what paper I might be thinking of? I can't seem to locate it.
<a href="https://cs3210.cc.gatech.edu/r/unix6.pdf" rel="nofollow">https://cs3210.cc.gatech.edu/r/unix6.pdf</a><p><a href="https://hn.algolia.com/?q=unix+commentary" rel="nofollow">https://hn.algolia.com/?q=unix+commentary</a><p>Most likely something related to that book.