[uxp100]

I think they'd retain some of that valuation. Unlike traditional cabs, they show up (I've been stranded by more cabs called by phone then I've taken, not hyperbole). But the value of some unified dispatcher framework, with penalties for abandoning customers probably isn't in the tens of billions. Maybe in the hundreds of millions? Either self driving cars change everything, quite quickly, or some people are going to lose a lot of money.