I have barely touched Julia and I am impressed by the performance. It could become a real competitor to R.<p>Nim could also play a significant role because its syntax is similar to Python, and because NumPy is a Python API which is very prominent among scientists. However someone has yet to write a Nim library similar to NumPy.<p>Nim has the advantage of zero overhead to C, and it compiles to C which makes Nim an interesting option for super computing.