Obviously a modicum of training is always needed in most contexts, the here is that if you have an innate ability to, say, swim (which I don't by the way) you can pick it up after a few hours in the water (I've seen toddlers do it), and that's only because you have a web of neural pathways that makes you particularly apt to this specific task. Lacking that wiring you're left flailing in the water wondering why you had such a stupid idea as to get in the water in the first place.