Laziness

I distinguish between lazy and eager expressions. I fully evaluate lazy ones, but in one gulp, while I step into the subexpressions of eager ones. So stepping into (map #(* 2 %) [1 2 3]) will give you the result [2 4 6] without showing you each multiplication. But (doseq [i [1 2 3]] (print i)) will step into (print i) for each value.