I agree - C or an assembler - anything close to the metal. Artfy farty stuff might teach you new ways of thinking about problems but not a lot about programmin

I agree - C or an assembler - anything close to the metal. Artfy farty stuff might teach you new ways of thinking about problems but not a lot about programming per se. Alternately - creating a (small) language of ones own and writing a compiler for it would be immensely beneficial.