You should learn a new language, a weird one that isn't like others you have used, e.g. if you have only ever done object oriented stuff learn a functional lang

You should learn a new language, a weird one that isn't like others you have used, e.g. if you have only ever done object oriented stuff learn a functional language. I spend some of my free time just learning new, mostly impractical languagess, and I have found that new ideas come through from the text at hand, or from thinking about problems in a different fashion. I suggest J, Erlang, and Idris. The first two have been around a while and have a good set of larning utilities. Idris on the other hand has a little more stuff going on, but learning about dependent type systems is fun. For me at least. J: http://www.jsoftware.com/help/learning/contents.htm http://www.jsoftware.com/help/learning/contents.htm Erlang: http://learnyousomeerlang.com/ http://learnyousomeerlang.com/ Idris: http://docs.idris-lang.org/en/latest/index.html http://docs.idris-lang.org/en/latest/index.html