### Comment:
I think someone will make an aggregator for ride-hailing apps, to allow customers to choose the best rate. At this point ride-hailing companies won't need a minimum vehicle fleet size in order to be viable.  
  
 Fleet size seems to be the main barrier to entry for would be competitors to Uber and Lyft at the moment.

### REPLY:
That would require Uber/Lyft opening up their APIs to external developers.  I think they have to know this is what would happen if they did so they would never.

### END.