I find the trinity of Matlab, Fortran and Julia quite interesting. They all have a similar syntax and I guess Julia can grab quite some people from the other two ecosystems. Clasically, scientists used Matlab for prototyping and Fortran for high performance implementations. With Julia, things might change. However, in science, changes happen slowly and there are still tons of codes (and also new codes) written in Fortran.

If given a modern tooling, Fortran is not too bad, thought. It is in some respect a "no bullshit" language which doesn't allow you to spend your time on infrastructure, architecture or meta programming, because it is virtually impossible to do these things within Fortran ;-)