>If ... something ... was viable, it seems like somebody would already be doing it This kind of thinking is useful as a first pass check, but one should not ca

>If ... something ... was viable, it seems like somebody would already be doing it This kind of thinking is useful as a first pass check, but one should not carry it too far. I would hope that by now the company has considered why no one has done it, and concluded that the obstacles are not insurmountable, and the prize in the end is worth it. Like so many other innovative companies, e.g. Tesla. Also... "Somebody who would be already doing it" would have had to pass exactly the same hurdle.