As an entrepreneur and a nerd, I can't count over the years how many times I was overly excited and too optimistic. I hope people and the main stream media are not this harsh to people who are trying to change the world. Look at how hard Elon works. Just extend his estimate by 10 years and let him and his team work his ass off. If by 2030, we have electric cars that drive safer and better than normal human beings, I'd call it a win.