Most small-scale miners want to know how they can set up a system much more cheaply. The difficulty is in the balance of putting together a decent small-scale system at a reasonable cost.

• Extremist groups are at it again
• Trump-era actions on endangered species being reviewed again.
 

One would think that the “science” of economics could lend itself to areas of high agreement between professionals, but that has hardly been the case throughout history—and it is not the case today.