I wouldn't say the gains are entirely unknown. Perhaps as yet unrealized in your learning efforts. But assuming you're building web applications, the two lang

I wouldn't say the gains are entirely unknown. Perhaps as yet unrealized in your learning efforts. But assuming you're building web applications, the two languages you cited (Go and Ruby) are effectively opposites on the performance spectrum [1]. [1] http://www.techempower.com/benchmarks/#section=data-r5&l=fsw http://www.techempower.com/benchmarks/#section=data-r5&l=fsw