If you do project that guaranteed to succeed, think it could be horribly conservative things. So you can't just do things. You know tat hundred are j… - Joe Armstrong

In Haskell, C or Java, or any these languages, that function composition will fail at compile time. Type system will say: we'll not allow you to compose things together because the types are wrong. But in Erlang, you can do anything you bloody would feel like just found together and know it at run time not at compile time. Some people think that is not so good. Some people think that is pretty cool. I will tell you why it's pretty cool. It's actually late binding, it makes decision late.

We wanted to build big distributed systems, fault tolerant systems. The sort of systems that everybody wants to build today. It's not just about telecom. At the time it was just about telecom but now, it's not just about telecom. Virtually, every big systems you want to build has to do these things. You want to connect millions of people and you don't want if the system fail in anyway, you don't want these individual transaction to be broken. We started to working on that, way back. That sort of way we got Erlang.

I think we need to start describing configuration languages that describe how the thing is built and configured.