Anybody here have selective hearing or seeing? Sure, we all do. Every second, our brain is bombarded with sensory data from all five senses. You just sat down, but already your brain has probably stopped consciously focusing on the feel of the seat. You're probably not thinking about the temperature of the room, although you probably did at one point this morning. There are all kinds of sounds that you're not focusing on right now - the faint hum of lights, somebody shifting beside you. Our brains w…