And how much would Tesla need to break even? And since how many years now? And what is their market cap?

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Or more down to earth, look at Elio Motors. They have had nothing but protoype cars for 8 years (a three-wheel, low-cost, high-MPG model in an era of revived Truck and SUV purchases); accumulated losses totaling over 120 million dollars; angry "waiting list" customers that put cash up front to get in line; allegations of fraud in their dealings in Louisiana, with much obfuscation about money trails... and yet... at this moment they are valued as a company slightly higher than POET, with all our patents and obviously rising, world-shaking potential.