Questions about which massive structures to build, and where, are actually very hard to answer. Infrastructure is always about the future: It takes years to construct, and lasts for years beyond that.

The 5,000 medals awarded at the games were all created by extracting gold, silver, and bronze from recycled small electronic devices — 78,985 tons of them, including 6.21 million cellphones. This should not just be considered an interesting factoid but, rather, a reminder to all American municipalities that their recycling programs are most likely out of date.

Many larger U.S. cities today are far more welcoming than are small towns to those who would raise a few chickens in their yards. Several big cities, including Seattle, Denver, and Salt Lake City, have passed good rules in recent years to facilitate urban chicken ownership. 

Traffic disappeared during the pandemic. What lessons did we learn as the brake lights return?