If you want a vision of the future, imagine a ride-hailing app sending cars to drive humans across the globe forever.
While Uber, Chinese rival Didi Chuxing and emerging Southeast Asian player Grab may not yet have sliced up the world between them in the manner of Oceania, Eurasia and Eastasia in Orwell's Nineteen Eighty-Four, the three have pulled off a series of intriguing geographical deals.
In the latest, Grab announced on Monday that it had bought Uber's Southeast Asian operations. In return, Uber will take a 27.5% stake in Singapore-based Grab.
Uber's deal for a stake in Grab puts it in...