[UMetaGOMS]

As someone who doesn't do software development as part of routine day-to-day work but has played with both, I'd describe Julia as "Fortran for Python developers", while Nim feels like "C for Python developers".

My interest in scientific applications pushes me towards Julia, but the user experience has so far been strictly worse than than Python, so I just don't bother with it as much as I might like to.

On the other hand, I am drawn to experiment with Nim (and to some extent Rust as well) because they feel better constructed, having more professional feeling tools and approaches to packaging. The downside is that their core strengths are in use-cases which aren't so aligned with my interests.

The strength of the Python packaging ecosystem makes me doubtful of the impact Julia can have. Meanwhile for Nim, it feels to me like awareness and adoption suffer a fair bit from competing with Rust for mindshare.