What can the Julia language do?

Answer 1

Just like Python, Julia can also be used for writing software in the widest variety of application domains. This is because Julia does not include language constructs designed to be used within a specific application domain. Julia lets you write UIs, statically compile your code, or even deploy it on a webserve

why should you learn Julia:

1 — It's blazingly fast right out of the box. ...
2 — It solves the two language problem. ...
3 — It excels at technical computing. ...
4 — It's composable. ...
5 — It does parallel really well. ...
6 — It's codebase is written entirely in Julia. ...
7 — Good call support to other languages.
8 — It’s dynamic and easy to understand
9 — It’s optionally typed
10 — It can do general-purpose programming

more info:
https://blog.goodaudience.com/10-reasons-why-you-should-learn-julia-d786ac29c6ca

https://julialang.org/

Answer 2

https://en.m.wikipedia.org/wiki/Julia_(programming_language)