> Then you'd have to redefine what a berry is. Why? I don't see pressing need for a waterproof definition. I'd think for general use "I know it when I see it"

> Then you'd have to redefine what a berry is. Why? I don't see pressing need for a waterproof definition. I'd think for general use "I know it when I see it" definition suffices, and for where exactitude matters having explicit list is better anyways