[danielweber]

How is "ride-sharing" any kind of natural monopoly? Uber can't lock in either drivers or riders.

They have to consistently provide a good experience for both drier and riders, who can switch literally by opening a different app on their phone.

Uber probably had the market strength to contractually demand that you couldn't be on the Lyft network while on the Uber network. If they had done that, they would have lock-in effects. Maybe they didn't because they were afraid of monopoly accusations.