We use sequences of vidio and search for parts of the scene that are expanding or contracting. Looming just means, you know, you don't see the world in three d. You see it in two d. And so it's just, how quickly is that expanding over your retina? Got it? So like jerassic park objects in the review mira, may appear larger than they actually are small. When something is charging at you, like a trex, it's getting bigger. Predators come charging at us. And it does something to our somatic system when something gets big real quick....