1. In distributed computing, there are usually minimal communication because nodes communication is costly, the bottleneck can still be the hot loop on each nodes.
2. When optimizing the hot loop only, it can be quickly written in Cython or C, since the scope is usually a lot smaller, so no need to use Go.
I didn't mean distributed computing, I meant distributed through the program. Not all programs actually have a hot loop.
> When optimizing the hot loop only, it can be quickly written in Cython or C, since the scope is usually a lot smaller, so no need to use Go.
That assumes proficiency in C, and it still complicates building / bundling / shipping a lot, the first bit of native code into a Python codebase is a huge investment and a significant step back in convenience in many ways.