Not sure if I like the 'some?' operation. It's short for (not (nil? x)).. And has nothing to do with 'every?' -which checks if every element of a collection matches a predicate - ex (every? odd? [1 3 5])

To check if some elements match you need to use (some odd? [2 3 4]) - note the lack of '?'

Bet it will confuse people.