I think we have to think about how we can make systems out of very small components with very strictly defined protocols between them. - Joe Armstrong

Don't be deluded into thinking that is sort of ultimately fault tolerant. You can only provision it for the faulty things that might happen and then for a large class of things it could happen.

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.

I had a plan. Learn Emacs. Learn UNIX. And learn programming language. What happened? I didn't learn Emacs. I didn't learn UNIX. And I invented a new programming language.