[epalm]

I’ve learned a handful of languages over the years, it was fairly straightforward to reason about all the c-likes (java, php, js, c#, etc), and others (python, tcl). They all have quirks and unique pros/cons, but it was mostly a matter of applying familiar ideas to a new environment/syntax.

But by a large margin nothing melted my brain more than learning a pure functional language (xquery, in my case). To have to think about programming in a completely different way was extremely beneficial. I highly recommend it, given the chance.