A pretty little blonde walks down the street, a young teen, ponytail bopping, legs pumping, arms keeping rhythm, a happy, purposeful walk. And I who have looked up from my desk and out the window have "Hey, Em!" in my throat and it's on my lips when I remember: Emily's away at school. She's in college. She isn't 14 anymore. It's like stepping out of movie theater at noon - going from black to bright, from story to reality…