I was watching a documentary on Netflix about AlphaGo, and at one point (~1:10:16 from the end), one of the programmers uses the term "heavy node," which I assume has to do with neural networks. I did a little bit of research but couldn't find anything on what that term means. The closest I could get was this wikipedia page on Heavy path decomposition: https://en.wikipedia.org/wiki/Heavy_path_decomposition, which seemed like it could be somewhat related, but I wasn't sure how exactly. Has anyone heard of this term being used? Does anyone know what it means?
For context, in the documentary the line is that if it (the network/player) creates something new not in the heavy node, then they don't see it.