Thanks for the reply. The perception of safety in attended ride shares is masking the larger economic constraint. So let's assume for sake of conversation that your safety concerns are warranted. I'd ask you to consider how much money additional money you're willing to spend on ride shares. The urban utopia of autonomous vehicles is often championed, yet fully unconsidered in a capitalist regime. How much additional money do you expect most Americans to spend toward ride shares, to the degree that they abandon vehicle ownership? What degree of broad behavior and spending change do you expect to occur as result of unattended ride shares?