Growing up with cats, I never lacked for quiet companionship. Not to mention the opportunity to observe such brazenly insouciant behavior. Affectionate aloofness packaged into an adorable fluff of fur. I was particularly intrigued by their seemingly excessive somnolence. Up to fifteen hours per day spent sleeping - to what end? Clearly some non-discarded evolutionary trait passed down from their fierce, roaring ancestors of six million years ago. The intense energy demanded of chasing, capturing, and consuming prey - not to mention digesting carnivory calories - required much recharging.