It's running in hundreds cities in tons of countries with huge pools of drivers. The server costs alone are going to be big. Plus you have to hire and pay for r

It's running in hundreds cities in tons of countries with huge pools of drivers. The server costs alone are going to be big. Plus you have to hire and pay for really good reliability engineers. Any outages are going to cost you a lot of confidence, and a lot of money. This is a really big amount of data, more than most people realize.