To my mind this quarter shouldn't be used at all in this kind of discussion since its so messy. e.g.: I take your point, but that $2.56B is the culmination of over ten years of R&D compensation. It's not at all representative of the company's broader financials.
OP's inference that Uber's quarterly loss is more than double Uber's quarterly R&D costs in general shouldn't be propped up by a moment in time observation.
OP's inference that Uber's quarterly loss is more than double Uber's quarterly R&D costs in general shouldn't be propped up by a moment in time observation.