@wilberforce15 The Japanese have been in an economic funk since the early 90's. A major reason is the Japanese build quality products that last. They don't get as many sales as they'd like because someone buying a high end product won't need to replace it for 10-15 years. If Tesla does last as long as you say then eventually their sales will slow down. You have to have a certain amount of wealth to afford one and not all the wealthy will want one. Those who do buy are looking at 15-20 years before replacing their car and they may want to go in another direction. Repeat sales are critical to success. You keep saying exponential growth. Looks to me it's baked into the cake that eventually sales will slow. It's very much like buying an iPhone. Only so many will and to attract new buyers Apple has to come up with valid reasons to spend that much. Only a Tesla costs a heck of a lot more.