Erlang – Concurrent Language for Concurrent World by Zvi Avraham.
If you need to forward a “why Erlang” to a programmer, this set of slides should be near the top of your list.
It includes this quote from Joe Armstrong:
The world is concurrent… I could not drive the car, if I did not understand concurrency…”
Which makes me wonder: Do all the drivers I have seen in Atlanta understand concurrency?
That would really surprise me. 😉
The point should be that systems should be concurrent by their very nature, like the world around us.
Users should object when systems exhibit sequential behavior.