And the answer to "should I use Java or Python" is: no! Use Haskell ;). If you're entirely tied to Java (and, in that case, Python would probably not be ideal),

And the answer to "should I use Java or Python" is: no! Use Haskell ;). If you're entirely tied to Java (and, in that case, Python would probably not be ideal), you can still use Scala. The question the study was asking was not "what language should I use for my lowest-common-denominator workforce" but rather "can a static type system catch more errors than unit tests and can statically typed code be as expressive as dynamically typed code". In other words, it was asking for existential quantification: "does there exist some type system such that..." rather than "forall type systems..." or even "forall average systems...".