I disagree. In practice the things I can do between Cython, llvmlite and numba are very low effort, wide reach optimizations. Practically, I have never found a

I disagree. In practice the things I can do between Cython, llvmlite and numba are very low effort, wide reach optimizations. Practically, I have never found a case when a feature of Julia would have made this much easier for me. As a result, the tradeoff of Julia continues to be 100% focused on the switching costs, infrastructure maturity, drop in equivalents of well worn Python libraries, etc.