Previous discussion ... https://news.ycombinator.com/item?id=14093860 https://news.ycombinator.com/item?id=14093860 From the top comment ... > The headline i

Previous discussion ... https://news.ycombinator.com/item?id=14093860 https://news.ycombinator.com/item?id=14093860 From the top comment ... > The headline is deeply misleading. > This article is not about classical negative mass or exotic matter – which would be major breakthroughs.