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A comment on Ask HN: What is the biggest untapped opportunity for startups?. Parent comment

Re:Ask HN: What is the biggest untapped opportunity for star... by HeyLaughingBoy on Monday February 06, 2017 @01:50PM (#13582653)
No one said it wasn't possible. Clearly, it's possible since ships were wind powered for millenia. The problem is that with very low fuel costs, it's not feasible because the drawbacks outweigh the benefits.
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