Is Scala a complex language?
One of Scala selling point is to be a modern language for the JVM and to remedy for many Java pains but it looks to me as a complex language.
The type system is so vast and complicated, many of methods signatures are unreadable to me.
What do you think?
Two answers: it's as complex as you want it to be, and yes, the type system is more complex, but buys you something, so it's worth it.
Personally, I think Scala will *not* be the next Java, because most developers are average (by definition) and are perfectly content to use blub languages, rather than sucking it up and actually learning their craft.
I think that the point was not that only elite programmers can get it, but that because of perceived complexity many developers will not take the time to try to learn it. I disagree, I definitely don't consider myself to be an elite thinker, and Scala is not beyond me. There are some hairy corners that I don't quite get, but for the most part, I have no problem with it. I actually think that as more people look into it, they will realize that there is nothing to be sacred of. Besides, if you have any specific questions, you can ask here (and other places) and we can learn and explore together.
Some problems are so complex that you have to be highly intelligent and well informed just to be undecided about them. - Laurence J. Peter