We originally used spawn/1 to spawn our process, but there is a better way to do it overall. The trouble with just using spawn is that if something happens to that for any reason, there's not really a good way to track it! Let's test this out by replacing our behavior in the receive to instead just raise an exception:
process = fn -> receive do _ -> raise "Oh no!" endend
Now in IEx, if we spawn this and attempt to do anything with it by sending it a message, we'll get an error message about a raised exception inside of a process:
iex(2)> pid = spawn(process)#PID<0.151.0>iex(3)> send(pid, :test):test18:08:16.958 [error] Process #PID<0.151.0> raised an exception** (RuntimeError) Oh no! (stdlib) erl_eval.erl:668: ...
