This may be true but conventional wisdom against using anything GC'ed for real-time applications (like HFT or aerospace stuff) is going to mean even if go's gc is good enough, using any gc'ed language for these apps is going to be extremely rare for years if not decades. Seems far more likely that rust will chisel away at that market than golang or any other gc'ed language.
For arbitrage that must happen really fast, FPGAs is the way to go, and for complex code that needs to be rewritten often and quickly, Java is probably a better fit than C++.
