I still trust autonomous cars more than I trust you

I told my grandmother about Mercedes-Benz's self-driving F 015 concept the other week, and she was horrified. "However could you trust it to drive you safely?" she wanted to know, perhaps thinking of how her DVR regularly and unpredictably dumps her favorite recordings and extrapolating that to a crazed silvery space-pod crashing and taking her grandson with it. In fact, …