Meta-Programming Erlang is not really easy because of the way the trees are parsed. - Joe Armstrong

I don't like modules. It's a sort of love/hate relationship. The problem with modules is the classification problem. When you have written a function you don't know in what modules you put it in.

How many machines boot in 60 milliseconds? When did it come wrong?

It's going to fail your project if you take the easy bits first, deliberately. Because you can't solve the difficult bit, your project will fail late than failing early and your company will lose lots of money.