For me I am also extremely anxious on the phone (albeit getting better), but this is a niche case. I think knowing the number is possibly the complication that

For me I am also extremely anxious on the phone (albeit getting better), but this is a niche case. I think knowing the number is possibly the complication that Uber solves? EDIT: I'm pretty uninformed about this whole world, as I use a dumbphone and never take a taxi so my guesses may be pretty wild here... Anyway, I suppose that you could have a number that you call that automatically delivers a self-driving car to your location as determined by GPS/voice-recognition technology but I think people would rather use an app. It's the potential of self-driving cars to make use of this sort of company's services that looks like it'll be profitable to me personally.