Partial knowledge versus full knowledge and storytelling

Partial knowledge is more often victorious than full knowledge; it conceives things simpler than they are and therefore makes its opinion easier to grasp and more persuasive. - Nietzsche 

Information overload exists. We don't want too much information because it gets in the way of the facts needed for a good story. Hence, there is an optimal amount of information: discard facts that aren't needed to tell a coherent story; yet if we have too few facts, we may miss what's critical. 

Good decisions always start with: Do I have the right information? Do I have enough information? What will I do with the extra information? Am I being too simplistic? Am I making the problem too complex?