Imagine (or, if you’re unfortunate, remember) having five tasks partially done. You’ve painted one wall of the bathroom, the dog food is still in the trunk, the mortgage check has been written but not mailed, and the leaves are piled up but not bagged. You’ve expended effort but haven’t created any value. The value arrives when the drop cloths and paint cans are out of the bathroom, the dog has been fed, the bank gets its money, and the yard is actually clear of leaves. Doing half of something is, essentially, doing nothing.
