Actually, that's already happening[1]. Also note that there is a library for "ruby contracts[2]" (which I didn't try yet, but I'm very eager to do so) which cou

Actually, that's already happening[1]. Also note that there is a library for "ruby contracts[2]" (which I didn't try yet, but I'm very eager to do so) which could give the same result as a statically typed language. [1] https://www.omniref.com/blog/blog/2014/11/17/matz-at-rubyconf-2014-will-ruby-3-dot-0-be-statically-typed/ https://www.omniref.com/blog/blog/2014/11/17/matz-at-rubycon... [2] http://egonschiele.github.io/contracts.ruby/ http://egonschiele.github.io/contracts.ruby/.