Bill Gates is building a "smart city" in Arizona
It has purchased 24,800 acres of land, which will be used for schools, housing, offices and commercial and retail space. Microsoft founder Bill Gates is planning to build a smart city in Arizona, according to a report in Popular Mechanics.
Global wealth up 27% since financial crisis
By estimates, the report said adding that 1,820 adults have wealth over $ 50 million, and 760 have more than $ 100 million. Stock market gains helped add $8.5 trillion to United States household wealth during that period, a 10.1% rise.