[mrfairladyz]

I think this is an underlying strength of Elon's success and the success of innovators in general (there were a few pages on this in Salman Khan's The One World Schoolhouse) -- starting from first principles. When you have an old model, it's come about due to whatever the situation in the industry was like at the time, and it's evolved due to past forces acting on the old model. To take a basic idea that seems figured out and "fine" (education, or a car) and get rid of any preexisting notions or ideas of how it should work, and start from first principles and think from the very start how it should be given modern advancements, is a difficult and powerful thing.