To Musk, highway speeds are not the challenge; the complexity of the landscape is. “Highway cruise is easy, low speed is easy, it’s medium that's hard. Being ab

To Musk, highway speeds are not the challenge; the complexity of the landscape is. “Highway cruise is easy, low speed is easy, it’s medium that's hard. Being able to recognize what you’re seeing and make the right decision in that suburban environment in that 10 mph to 50 mph zone is the challenging portion.” http://www.pcworld.com/article/2898118/elon-musk-teslas-could-drive-themselves-today.html http://www.pcworld.com/article/2898118/elon-musk-teslas-coul...