Tuesday, September 14, 2010

Barth on Dogmatics--Commentary 1

Karl Barth begins his “Dogmatics in Outline” by writing, “Dogmatics is a science.”

Whoa! What does he mean by this?

“In every science an object is involved and a sphere of activity. In no science is it a matter of pure theory or pure practice; on the one hand, theory comes in, but also, on the other hand, practice is guided by this theory.”

Perhaps we get all tied up in knots because he uses the term “science” and then attempts to relate dogmatics to the well-known perception of science that we are all familiar with involving experiments and tests and other “hands on” things.

But, he says here that science is not just theory but it is also practice as well. That is, we cannot focus on just one or the other. These two components of a “science” are “combined at the hip” in his view and cannot be separated.

Maybe we have a problem with this comparison because of the time that Barth gave the original lectures, in 1947. At that time, science was considered by many people to be a field of its own, something separate and distinct from theology or the humanities or “soft” stuff. At that time, many believed that a field could be only one or the other and science was the one field that could provide “proofs”.

I believe that the times have changed and what Barth says is more acceptable to more people now than it was way back then. First of all, however, I would change his emphasis on trying to claim that dogmatics is a science. In my view, dogmatics or theology has arisen because of the basic human capacity to solve problems, to make decisions.

In this respect, dogmatics, like physics or chemistry or biology, is an effort by humans to solve more and more difficult problems or to make better decisions. In all of this, humans begin with a question. For example, “Why do apples fall to the ground when they drop from trees?” Or, “Why is there something rather than nothing?”

To answer this, humans build models, formal or information, or other systematic ways of trying to explain what happens. In building these models humans are looking for ways to predict outcomes. They want to predict outcomes so that they can solve a problem or make a decision. Practice or action is in the picture.

Of course, a science like physics can be very abstract, mathematically based, and logically consistent. But, models can be very common place and ordinary. Rules of thumb may result from human model building. Stories or narratives can result from human model building. Models and schema can take all kinds of different forms and still be exceedingly useful to human beings.

When Barth was writing these lectures, the general feeling was that science was abstract, mathematically based, and logically consistent. If a model did not fit this criterion then it was not considered a part of a science.

Now, however, we consider that narratives can be just as helpful to humans in problem solving or decision making as can formal, logically consistent mathematical models. In fact, it is clear that humans use models constructed around stories or narratives far more in their lives than they do these other kinds of models. We know now that the same process is involved in either approach. We give this approach another fancy name: we call this process of model building inductive inference and it is something that people use constantly in all the things they are doing in their lives.

In more formal situations, people can this approach the scientific method. In other situations people just call this problem solving. It is the process a question is ask, information that is hopefully relevant is collected, and then an effort is made to induce, from the information, so kind of model that can make predictions. The model is then used to make forecasts in specific situations. If the model builder does not feel very confident about the model at this point, more information can be collected. Then an action is taken, given the model.

The final step in this iteration of the process is to compare the predictions the model has produced with the outcome of the action. If the outcome is relatively close to the predictions, then the model-builder will go ahead and use the model again in the future. If the outcome is significantly different from the prediction then the model-builder will make alterations to the model so that a better forecast can be forthcoming next time the model is used.

This process is continued, iteration after iteration, until the model ceases to be useful or until other questions are asked. Then the model-building process begins again.

The crucial thing is that this process of inductive inference is a normal human process that has been a major part of the evolution of the species. Human’s problem solving capabilities separate this species from all the others. These capabilities apply to physics and to dogmatics. Therefore, what Barth claims for dogmatics, I believe, is true.

There are other parts to what Barth writes, however. For one, the models human beings construct are fallible. “No act of man can claim to be more than an attempt (at comprehension and exposition, at investigation and instruction), not even science.”

And, Barth states that “By describing it as an attempt, we are simply stating its nature as preliminary and limited.” He goes on: “we are under no illusion that anything man can do can ever be an undertaking of supreme wisdom and final art.”

“Christian dogmatics is an attempt—an attempt to understand and an attempt to expound, an attempt to see, to hear, and to state definite facts, to survey and co-ordinate these facts, to present them in the form of a doctrine (a model).”

Our models are incomplete and fallible…in physics, in economics, in theology, in whatever. The test of our models is practice…we must act using the predictions or forecasts we derive from our models. Theory, just believing in your model is in not enough. This is the “pure theory” that Barth talks about “on the one hand.”

The models must allow us to solve more and more difficult or make better decisions. The models must be put into practice “on the other hand.” Theory (dogma) is not useful unless it works in practice, but practice without theory (dogma) is meaningless. The final test of the model and the theory is whether or not it works when one acts on it.

David Tracy, the Roman Catholic theologian, defines a model as relatively adequate when it is logically consistent and can predict at least as well an any other logically consistent model that is relevant for the situation at hand. Our dogmatics must be relatively adequate.

Theology, dogmatics, is a human activity. In this respect it is like physics and chemistry and biology. Barth then concludes, “So by dogmatics we understand this twofold activity of investigation and doctrine in relation to an object and a sphere of activity.” Barth continues by defining the object of dogmatics and the sphere of activity. A discussion of this will follow.

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