This is run on the BEAM VM, so a LiveView is a lightweight process hooking up the view to the bells and whistles of the BEAM, including relatively easy Pub/Sub,

This is run on the BEAM VM, so a LiveView is a lightweight process hooking up the view to the bells and whistles of the BEAM, including relatively easy Pub/Sub, soft-realtime monitoring and so on. Some people think it's kind of nice to have one programming language for everything, including queues, cache, database queries, client layout, business logic.