As a somewhat reluctant user of Python for scientific computing, the main thing that keeps me from trying Julia is that it seems to have a severe case of featuritis. I never wanted or needed my convenience language to try to be a C++ replacement, and the hodgepodge of syntax I see when I look at Julia samples is nauseating.

Replacing Python is not practical right now because it is more comfortable to use a language that doesn't try to be everything to everyone, and that means that it will be built on a base language — in Python's case, C. That ground is shifting, and nobody is sure if the new base will be Rust, Zig, something else, or if it will all blow over and C will come back. So the space isn't being targeted very much.