That doesn't sound like a proper set of assumptions - that human accidents will be fender benders while self driving will be chunk-salsa worthy. The cumulative

That doesn't sound like a proper set of assumptions - that human accidents will be fender benders while self driving will be chunk-salsa worthy. The cumulative fatality risk applies to both parties. Humans will die in fatal accidents that no Self Driving car would do. The 1000x better demand is more a stupid human illusion of control thing like fearing flying more than a road trip of equal distance.