"Private intellectual activity that is sustained, complex, and long-term requires an external intellectual community to provide material and motivation, like fuel and oxidizer."
Aside from programming, one of my main interests is reading and writing. I think that literary fiction proves what the author is saying above. Even the most reclusive, private authors (Thomas Pynchon, Cormac McCarthy, etc.) actually published their work. They contributed to the community and took part as readers. Literature is always in conversation with itself. And although literary fiction may seem not to have the sway it once did in society, it is flourishing among the people who care about it (like me).
My thoughts aren't fully formed, but I find it interesting to situate technical pursuits like software engineering with humanities. And anyway, I've always felt that programming is both a science and art.
Kafka didn’t publish his work, and I’d expect that he’s just one we happen to know about, others are likely lost to time.