[cubefox]

A related thing occurs in academia for very niche topics on which only very few people are working. Perhaps nobody for most of the time. A paper might "reply" to another paper from years or decades ago, and receive itself a reply only years later, but from a different author.

The cool thing is that you can easily become the current world leading expert on such a niche topic, because there aren't that many papers. So it's easy to know every single one of them, and the few experts are spread out in time rather than space.

It's like a web forum thread on a very obscure question, where only every few years someone contributes a new comment, likely never to be read by most of the previous authors, but read by all that come later.

[pavel_lishin]

> A related thing occurs in academia for very niche topics on which only very few people are working. Perhaps nobody for most of the time. A paper might "reply" to another paper from years or decades ago, and receive itself a reply only years later, but from a different author.

Reminds me of certain parts of "Anathem".

[Davidzheng]

I do want to say often math papers have gaps, purely explained parts and sometimes mistakes which can make it quite hard to understand a topic of literally no one else still remembers it though. However the overall advancement of math sometimes helps in this regard