That's the reason why I've listed so many: I try to challenge myself to learn something quickly. The other reason is my mathematics background. For instance,

That's the reason why I've listed so many: I try to challenge myself to learn something quickly. The other reason is my mathematics background. For instance, I'm not very strong in Haskell, but I can do a thing or two in it and move forward in -thinking- in the functional paradigm. At present, I think I could manage writing "production grade" code in a handful of those languages, and have only spent a non-trivial amount of time in C++, PHP and JavaScript. Testing is also a weak area of mine. Take that for what you will.