Minor nitpick: 20,000 square km is not equal to 12,427 square miles. Looks like the author divided the area by the km/mi ratio instead of km^2/mi^2. I'd email t

Minor nitpick: 20,000 square km is not equal to 12,427 square miles. Looks like the author divided the area by the km/mi ratio instead of km^2/mi^2. I'd email the author but the mailto: is improperly formatted.