Yes, but it's easy to calculate out the results for everyone (drivers, Uber) if vehicles are x% more utilized, and at no point does it become sustainable for an

Yes, but it's easy to calculate out the results for everyone (drivers, Uber) if vehicles are x% more utilized, and at no point does it become sustainable for anyone - let alone profitable. As the Naked Capitalism article points out the only way this works is if Uber finds ways to reduce the fixed costs involved in their service, which taxis around the world have thus far been unable to do and Uber shows no evidence of achieving.