I think everyone is underestimating how many people live in these conditions. The Los Angeles economy alone is bigger than almost every other country in the world. Add in the rest of Southern California & The Bay, Phoenix, New Mexico, and the majority of Texas's population -- and that's probably a bigger economy than any other beside China.

Will self-driving cars be applicable EVERYWHERE in EVERY condition shortly? No. But even if they're only available in ideal conditions in some places -- that can still be almost unfathomably huge.