The author of this post was a recent guest on an episode[1] of the Rails with Jason podcast. She discussed the book she's working on, which I believe is based on the series of blog posts of which this one is a member. The episode was a bit of an introduction to garbage collection in Ruby, as opposed to the deep dive into one particular aspect in this article.

https://railswithjason.simplecast.com/episodes/093-garbage-c...