it's pleasant in Erlang for a lot of reasons and due to a lot of past work. You
can go with message-passing only, as a discipline, even with C11 threads, and
you wouldn't have nearly as good as a time. For example, if you somehow managed
to deadlock an Erlang system, you can connect a shell to it, look at the running
processes for your application, realize that they're all waiting for a message,
and then say "I should have used the industrial-strength concurrency pattern
library that Erlang also offers."