"Decentralized Uber" is asking the wrong question. Taxi services will always be a regulated profession. There will always be certificates and exams and unions.

"Decentralized Uber" is asking the wrong question. Taxi services will always be a regulated profession. There will always be certificates and exams and unions. What "decentralized Uber" would actually look like would be a standardized protocol for taxi agencies so that with the same app you can call a taxi in NY or LA. They would have to set up a server and when you go to another city instead of calling a phone number you simply navigate to the website or put a unique code in your app and you can immediately call a taxi through them.