About Yang's book... "In coming years it’s going to be even harder to forge a sense of common identity across different walks of life. ... They ... retain a de

About Yang's book... "In coming years it’s going to be even harder to forge a sense of common identity across different walks of life. ... They ... retain a deep familiarity with the experiences of different types of people. ... In another generation this will become less and less true. There will be an army of slender, highly cultivated products of Mountain View and the Upper East Side and Bethesda heading to elite schools that has been groomed since birth in the most competitive and rarefied environments with very limited exposure to the rest of the country." As someone who grew up in the middle of nowhere and currently lives in a different middle of nowhere, I would like to suggest that Yang is several generations out of date. Perhaps several centuries. Or millennia. "Today, thanks to assortative mating in a handful of cities..." Okay. I suspect Yang is deep within his own bubble and is like the fish that doesn't know it's wet.