When it comes to UFOs most everything is an unknown. We don’t know where they came from, where they’ve been or why they’re here. We do know however that they are here often, they appear to be studying us and they have an affinity for nuclear weapons and facilities and prefer cattle. So there are some things we know, other things we know we do not know, and a third group of things that are unknown that we are in the dark about. On that confusing path we lead you to a more direct course of understanding with this interesting article by Bryce Zabel writing for Medium.com that takes us down the path of knowns and unknowns and unknown unknowns and you can find this fun yet dizzying exchange HERE.