One of the other analogies is to containers: processes in BEAM are as isolated from each other as applications running on different machines. They can pass mess

One of the other analogies is to containers: processes in BEAM are as isolated from each other as applications running on different machines. They can pass messages to each other but they absolutely cannot access each other's memory... this was explained to me when I asked about running Elixir apps in Docker containers and the "Erlang old-timer" laughed and explained why it wasn't necessary.