But with so many tech investors at the helm who are eager to pilot new technologies like flying cars, I’m not optimistic. It’s challenging to transform our existing cities and to pilot new tech solutions on our streets. Wouldn’t it be easier to test new technologies, business models and government structures in cities free of pesky people? Market them to people who choose to join and see what the world learns.”But, these new cities are never really built from scratch. Follow The New York Times Opinion section on Facebook, Twitter (@NYTopinion) and Instagram.

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Persons: Technotopians, they’ve, they’re, That’s, Lonsdale, Solano, They’ve, ” John Garamendi, we’ll, Molly Turner Organizations: Democrat, Haas School of Business, University of California, New York, Facebook, Twitter Locations: Toronto, Polynesia, Solano County, University of California Berkeley, ”