Catching a glimpse of myself shuffling like an old woman in a window, I quickly straighten my posture and step onto the down escalator. I feel my abdominal muscles stiffen to support my upper body. How strange it is, I think, that we have this huge gap in bone support through an important area of our body. Just a measley spine, and those all-important "core" muscles. No wonder it is so easy to slouch forward with nothing solid there to prop us up. Why are the lungs considered important enough to cage in ribs but the intestines are not? Ribs, those amazingly flexible bones that rise and fall with each breath we take.  Flashback of Human Bio I: our diaphram constantly changing the volume and pressure inside of our lungs, forcing air in and out. What about when we die? Is the pressure in our lungs high or low when we go? Someone out there right now has studied exactly what happens to our flesh when we die...and I never will. My mind brushes on that great gulf of things that I will never know in my very short time on earth, because I will choose instead to try on clothes, drink champagne on roofs, and play make-believe on stage. Do I waste time? Would it matter if I didn't? My mind brushes it, acknowledges it, and withdraws before it is pulled into that lost and strange land of All There Is To Know. I reach the bottem of the escalator. Shoulders back girl, suck it in.