[cowholio4]

There are some skeptics. "Their main concern is that Silvera and Dias really only have one data point: a single measurement of the reflectivity of their sample at high pressure. While that could indicate metallic hydrogen, it could also be something else, like the alumina coating they used on the diamonds to prevent hydrogen from leaking into the crystal and making it brittle." http://www.forbes.com/sites/samlemonick/2017/01/27/theres-re...