The sorts of disruptions we should worry about are ones that disemploy a lot of people who need a job. Certainly self-driving cars will do that. But how many pe

The sorts of disruptions we should worry about are ones that disemploy a lot of people who need a job. Certainly self-driving cars will do that. But how many people work in the production of precious metals? Once upon a time, asteroid mining would have been highly disruptive to monetary policy, but today currency values are not tied to metals.