if you are for perfomance don't use reduce, use loop and time get reduced from 0.38 seconds to 0.049 seconds. (time (loop for x across *nums* sum x)) Eval

if you are for perfomance don't use reduce, use loop and time get reduced from 0.38 seconds to 0.049 seconds. (time (loop for x across *nums* sum x)) Evaluation took: 0.049 seconds of real time