I don't think it's a good idea to worry about dialyzer, iolists or especially macros for someone just learning. In fact, I don't think OTP should be the first s

I don't think it's a good idea to worry about dialyzer, iolists or especially macros for someone just learning. In fact, I don't think OTP should be the first step, either. You can be very productive with Elixir before learning the things that it's famous for!