They follow a trajectory that is oblique. Obliquity describes the process of achieving complex objectives indirectly.

In general, the oblique approaches recognise that complex objectives tend to be imprecisely defined and contain many elements that are not necessarily or obviously compatible with each other, and that we learn about the nature of the objectives and the means of achieving them during a process of experiment and discovery.

The environment— social, commercial, natural— in which we operate changes over time and as we interact with it. Our knowledge of that complex environment is necessarily piecemeal and imperfect. And so objectives are generally best accomplished obliquely rather than directly.

12. Abstraction

Everyone else knows that our approach to problem solving is more oblique. We are influenced by the context. We like the other person or we want to develop a reputation as a tough negotiator. We feel angry at a derisory offer; we think that an equal division is fair.

In chapter 7 I described a spectrum of problems. At one end were those— like nought and crosses— best solved directly; at the other were those— the pursuit of happiness— best achieved obliquely. There is an analogous spectrum of decision-making styles, from direct to oblique.

The direct decision maker perceives a direct connection between intentions and outcomes; the oblique decision maker believes that the intention is neither necessary nor sufficient to secure the outcome. The direct problem solver reviews all possible outcomes; the oblique problem solver assembles all available information; the oblique decision maker recognises the limits of his or her knowledge. The direct decision maker maximises his or her objectives; the oblique decision maker is continuously adaptive. The direct problem solver can always find an explanation for his or her choices; the oblique problem solver sometimes just finds the right answer. The direct decision maker believes that order is the production of a directing mind; the oblique decision maker recognises that order often emerges spontaneously— no one fully grasps it. The direct problem solver insists on consistency, on always treating the same problem in the same way; the oblique problem solver never encounters exactly the same problem twice. The direct decision maker emphasises the importance of rationality of process; the oblique decision maker believes that decision making is inherently subjective and prefers to emphasise good judgment.

Good decision making is pragmatic and eclectic. Oblique approaches rely on a toolkit of models and narratives rather than any simple or single account. To fit the world into a single model or narrative fails to acknowledge the universality of uncertainty and complexity.