Wouldn’t get your hopes up on it being 90% cheaper—typically Waymo cost the same or slightly more than Uber for me. Obviously the economics change as time goes on but I doubt they will make it that much cheaper.
All other tech has gotten 10x cheaper across 10 years. No reason to doubt robotaxi fleets won’t as well.
Well that’s flat out not true, EVs aren’t 90% cheaper than they were 10 years ago.