All that tells me is they did find an efficiency. If they didn’t, their driver supply would have dropped. Unlike the taxi business, Uber/Lyft can tap into otherwise dormant supply of drivers who already own a car but aren’t willing to spend all 40-60 hours a week driving a taxi. With Uber/Lyft, they can become part-time drivers (they have flexibility and they can use an asset they already own anyway). Is it worse for the full time taxi drivers who used to have the supply artificially constrained in the old medallion system? Yes, but does it also benefit others who want to do this as a flexible job, zero skills required other than driving, no boss to deal with, no job interviews, etc. Yes!