1) How many turns do you take on a particular trip
2) How do those wrong turns end up? if it's "travel time extended by 30 seconds" or "My car, the car I hit and the side of this building are all in shambles" changes what a 10% failure rate means a lot.
Right? Took a turn the wrong way down a one way street. Hit a lady with a stroller who was looking the other way. She is a surgeon. Her husband is a lawyer. You killed the kid. Your life is over.
On the other hand, you did just describe the early days of both consumer GPS navigation and things like mapquest. There were countless stories and gleeful news articles about people turning the wrong way down a one way street, driving into ponds, getting stuck on logging roads and all sort of other chaos caused by inattentive drivers and blind faith in flawed systems. But the key takeaway I think is that in the end, consumer GPS succeeded. Bugs were fixed and now everyone does have a little robot in their pocket that can tell them how to get somewhere.
1) How many turns do you take on a particular trip
2) How do those wrong turns end up? if it's "travel time extended by 30 seconds" or "My car, the car I hit and the side of this building are all in shambles" changes what a 10% failure rate means a lot.