Sure. Individual aspects of Erlang&#x2F;OTP are all present in other systems. OS processes, queuing backends, light weight co-routines, Java has some code reloading too.<p>But it makes a difference if it is in one language&#x2F;framework and built-in. It makes tracing&#x2F;debugging&#x2F;developing easier.<p>Like with Python, yeah can use a queuing subsystems and submit jobs. But that is another service to configure and manage. Can use multiprocessing (and I&#x27;ve done that), but can&#x27;t launch 1M of sub-processes. Which now changes how you develop. It has a green-thread co-routine support via greenlet (eventlet &amp; gevent) but those share memory and if you do any CPU intensive work will block each other and will also share the heap.