'At NFJS shows, a common question is "I only have time to learn one new language on the JVM: which should I pick?".<p>The easy answer is true: it doesn't matter. Just pick one already!'<p>So what is the 75% answer to "which other JVM language should I learn?"<p>I figure it's either Clojure or Scala, but not sure which one. I prefer Clojure and it seems to get a lot of buzz on HN and proggit, but Scala might be a more straightforward "upgrade" path from Java, and might have more users.