Programming Erlang 2nd.pdf

Concurrency is natural in Erlang. The real world actually has independent things communicating through messages. I’m an ex-physicist—we perceive the world by receiving messages. Packets of light and sound carry information. All that we know about the world is what we’ve learned by receiving messages. We don’t have shared memory. I have my memory, you have yours, and I don’t know what you think about anything. If I want to know what you think about something, then I have to ask you a question and wait for you to reply. The model of programming that Erlang uses is very similar to how the world works. This makes programming easy. Many programmers have discovered this, as have many companies.