[inamiyar]

I think it depends on the language and background. Learning Go is maybe a 20 hour enterprise. Learning C++ if you're coming from Rust? Maybe 20-40 hours, not sure. Learning C++ coming from Python? Well....buckle up.

Same in reverse btw. Going from C++ to Python is probably easier than Python to C++, but it's still not going to be as easy as, let's say, java -> C# imo.