Fragmentation, not in the sense of communication channels. Fragmentation in, lets say responsibilities. The late Pieter Hintjens of zeromMQ has some good videos on that. <https://www.youtube.com/watch?v=QB7VXSc5H3A> and <https://www.youtube.com/watch?v=uzxcILudFWM> for example.
Then, regarding communication, a "home" is a nice place to have.
