I'm in agreement with tptacek and P.McKenzie and feel it's something more generally true; perfection is the enemy of throughput. Whether it's mine processing,

I'm in agreement with tptacek and P.McKenzie and feel it's something more generally true; perfection is the enemy of throughput. Whether it's mine processing, agriculture, bank lending, { insert domain } there are always a number of drags on profit ( fraud, equipment wear and tear, petty theft, holes in fences ) and generally always a threshold past which the cost of pursuit of perfection exceeds the decreasing marginal benefit.