New and Diverse Neighborhoods?

In the “Digital Geography” article, Kotkin discusses how new and favorable cities are arising. While San Francisco, Denver, Seattle and Boston are thriving in this new techno world, other large metropolitan areas like New York and Chicago only seem to have pockets of success, leaving other parts of the city in hopeless devastation. He also discussed how neighborhoods, when faced with the fact they can’t compete in the digital age, revert back to a pre-industrial way of life, “…such as cross-cultural trades, the arts and specialized craft-based production…” Has this really been happening? What more can be done to create a diverse and non-technology economy?