Also:
4) migrate to other languages, such as Go
... which is not uncommon, and in many cases a pretty good idea.
4) migrate to other languages, such as Go
... which is not uncommon, and in many cases a pretty good idea.
This depends heavily on the type of work someone is doing. People doing numeric/scientific computing work with Python can't really do this, for example, because there's a distinct lack of other languages with equivalents to the libraries and tooling Python gives them for their work. And that's a chicken/egg feedback loop problem: Go needs the libraries and tools, but in order get them needs people to move, but in order to get people to move needs the libraries/tools, and so on.
All in all, this is a bad recommendation. Julia is version 0.4. Its syntax changes with every version. It is not going to be stable soon. It is so far from stable that it doesn't have a plan for what stability will look like.
It's fine if you want to get in on the ground floor of a programming language, or to learn a new language for the fun of it, but it's completely unreasonable to suggest that you could replace a programming language that people use for their jobs that way.