Does nuclear fusion count as a "hard problem"? http://techcrunch.com/2014/08/14/y-combinator-and-mithril-invest-in-helion-a-nuclear-fusion-startup/ http://tech

Does nuclear fusion count as a "hard problem"? http://techcrunch.com/2014/08/14/y-combinator-and-mithril-invest-in-helion-a-nuclear-fusion-startup/ http://techcrunch.com/2014/08/14/y-combinator-and-mithril-in...