Apple’s $1 Billion Didi Spend and the Fight for Cars

There’s a revolution coming in autos. Maybe it’s self-driving vehicles, maybe it’s a car you share with your neighbors, maybe it’s electric. Silicon Valley giants like Uber, Tesla and Google are fighting to define it. Apple’s $1 billion investment in Didi Chuxing, a ride-hailing company known as (sigh) the Uber of China, marks yet another giant…