Amid all the digital wealth, the big cities of the West are racked with the destitute. We know how to solve this problem, so what’s stopping us?
The icons of downtown San Francisco are the same whether you’re looking at the buildings or at your phone. In the blocks around the undulating, metal-screened length of the city’s new bus and train terminal, skyscrapers—including the city’s tallest—flash all the familiar logos. There’s Salesforce and its new tower, of course, but also LinkedIn,...