In the early days when you made your pitch, institutional investors said Tesla was too volatile. We took our cues from a value investor who said to us, i would never buy one stock in your portfolio, but i like your research, and you might be right. And here we are. The most important call that we made initially with tesla was, allright, tesla's battery technology is unlike any other auto manufacturers battery technology. So even to day, these cylindrical batteries that he's been using, relative to lithiamion, pouch lower cost, and will remain lower cost for at least three years, we think.