In the 20th century, America transformed its built environment. We built the roads, highways and interstates that made automotive transit efficient and fast. We built houses and apartments at a pace and cost that made middle class lifestyles much more broadly accessible. And we built an energy grid that made previously unimaginable things ordinary: we press a button to turn on a light, access hundreds of television channels, or change the temperature in our homes. Those investments fundamentally transformed our lives.

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