Unfortunately, the claim that "Most mining at the moment is being done at a loss." is unsubstantiated and highly debatable. It's nearly impossible to establish

Unfortunately, the claim that "Most mining at the moment is being done at a loss." is unsubstantiated and highly debatable. It's nearly impossible to establish the efficiency and USD-production-cost of mining technology being operated in secret - say, coincidentally nearby a 14nm Intel fab.