Demand for shares can be driven by speculation and/or infatuation only for so long. Fundamentals are facts. 

If it was stupid, the markets would correct it pretty quickly .The fact that it hasn’t indicates there are factors right now that tilt toward risk more than reward. Without a history of commercialization, the technology advances do not attract investor interest, but fundamentals do, in this case, not for the better.

It’s not hard, it’s the financials and the lack of a clear forecast to monetization.