[zanderwohl]

I agree. I don't know much about Erlang but what I've heard seems to indicate it's used for high-uptime systems that handle errors well.

[Muromec]

I suspect the causality is reversed. When you have a good designed telecom system, then spmething shaped as erlang happens to be a good tool to create to implement it. The tool than keeps you committed to the design choices you made by being restrictive enough.