One of the myths of our country is the Horatio Alger, rags to riches, anyone can become anything if they only work hard enough story. But I think back to a good friend of mine who quit one job on the East Coast to take a new job in the Bay area, leaving behind a life well constructed. Whenever she got overwhelmed with the "How am I going to start from scratch?" questions, she would tell herself, "Hey, I'm white and middle class in America, everything will be fine." Do we have a de facto caste system? I look at the distribution of education, the segregated way we live, and it certainly seems like we are stuck within our socio-economic pigeon holes. Is social mobility in America real?