Loss-making Uber does not look like a business worth $90bn

As drivers protest and the IPO roadshow rolls on, investors need to ask some tough questionsGood luck to those Uber workers protesting about wages and working conditions. They picked their moment to coincide with this week’s IPO in New York, in which the company is set to be priced at $90bn (£70bn) or thereabouts, and they chose well. You do not have to be a bleeding heart liberal to think something obscene is happening when Uber drivers tell tales of sleeping in their cars to make e