It's not nearly enough of an improvement over Rails or Django to displace them. I expect it to do much better over the next few years than any other functional

It's not nearly enough of an improvement over Rails or Django to displace them. I expect it to do much better over the next few years than any other functional programming framework but I don't expect it to escape that niche. Pollak has realized, as I begrudgingly did, that Scala, like all the other type-inferencing static FP langs, is just too hard for the programming mainstream. Once you've decided to go polyglot you might as well just use a boring but safe core language like Java or C++ and build as much on top of that as you can in your dynamic language of choice.