Cause and effect

One should differentiate such categories as cause and effect. Cause is the philosophical category, which characterizes connections and relations that predetermine changes. Effect is the philosophical category, which determines the result of the cause. The concept of causality is one of the most important in philosophy and science. It defines the fundamental property of the Universe: cause always precedes effect. The cause-effect connection is objective. The concepts of "cause" and "effect" are used both for defining simultaneous events, events that are contiguous in time, and events whose effect is born with the cause. In addition, cause and effect are sometimes qualified as phenomena divided by a time interval and connected by means of several intermediate links. For example, a solar flare causes magnetic storms on Earth and a consequent temporary interruption of radio communication. The mediate connection between cause and effect may be expressed in the formula: if A is the cause of B and B is the cause of C, then A may also be regarded as the cause of C. Though it may change, the cause of a phenomenon survives in its result. An effect may have several causes, some of which are necessary and others are accidental.

An important feature of causality is the continuity of the cause-effect connection. The chain of causal connections has neither beginning nor end. It is never broken; it extends eternally from one link to another. And no one can say where this chain began or where it ends. It is as infinite as the universe itself. The internal mechanism of causality is associated with the transference of matter, motion and information.

Effect spreads its "tentacles" not only forwards (as a new cause giving rise to a new effect), but also backwards, to the cause which gave rise to it, thus modifying, exhausting or intensifying its force. This interaction of cause and effect is known as the principle of feedback. It operates everywhere, particularly in all self-organising systems where perception, storing, processing and use of information take place, as for example, in the organism, in a cybernetic device, and in society. The stability, control and progress of a system are inconceivable without feedback.

In complex cases one cannot ignore the feedback of the vehicle of the action on other interacting bodies. For example, in the chemical interaction of two substances it is impossible to separate the active and passive sides. This is even truer of the transformation of elementary particles. Thus, the formation of molecules of water cannot be conceived as the result of a one-way effect of oxygen on hydrogen or vice versa. It results from the interaction between two atoms of hydrogen and one of oxygen. Mental processes are also a result of the interaction between the environment and the cortex.

Just as various paths may lead to one and the same place, so various causes lead to one and the same effect. And one and the same cause may have different consequences. A cause does not always operate in the same way, because its result depends not only on its own essence, but also on the character of the phenomenon it influences. Thus, the heat of the sun dries out canvas evokes extremely complex processes of biosynthesis in plants, etc. Intense heat melts wax but tempers steel. At the same time an effect in the form of heat may be the result of various causes: sun rays, friction, a mechanical blow, chemical reaction, electricity, disintegration of an atom, and so on. He would be a bad doctor who did not know that the same diseases may be due to different causes. Headache, for instance, has more than one hundred.

The rule of only one cause for one effect holds good only in elementary cases with causes and effects that cannot be further analysed. In real life there are no phenomena that have only one cause and have not been affected by secondary causes. Otherwise we should be living in a world of pure necessity, ruled by destiny alone.

In the sciences, particularly the natural sciences, one distinguishes general from specific causes, the main from the secondary, the internal from the external, the material from the spiritual, and the immediate from the mediate, with varying numbers of intervening stages. The general cause is the sum-total of all the events leading up to a certain effect. It is a kind of knot of events with some very tangled threads that stretch far back or forward in space and time. The establishing of a general cause is possible only in very simple events with a relatively small number of elements. Investigation usually aims at revealing the specific causes of an event.

The specific cause is the sum-total of the circumstances whose interaction gives rise to a certain effect. Moreover, specific causes evoke an effect in the presence of many other circumstances that have existed in the given situation even before the effect occurs. These circumstances constitute the conditions for the operation of the cause. The specific cause is made up of those elements of the general cause that are most significant in the given situation. Its other elements are only conditions. Sometimes an event is caused by several circumstances, each of which is necessary but insufficient to bring about the phenomenon in question.

Sometimes we can clearly perceive the phenomenon that gives rise to this or that effect. But more often than not a virtually infinite number of interlocking causes give rise to the consequences we are concerned with. In such cases we have to single out the main cause – the one which plays the decisive role in the whole set of circumstances.

Objective causes operate independently of people's will and consciousness. Subjective causes are rooted in psychological factors, in consciousness, in the actions of man or a social group, in their determination, organisation, experience, knowledge, and so on.

Immediate causes should be distinguished from mediate causes, that is to say, those that evoke and determine an effect through a number of intervening stages. For example, a person gets badly hurt psychologically, but the damage does not take effect at once. Several years may elapse and then in certain circumstances, among which the person's condition at the time has certain significance, the effect begins to make itself felt in the symptoms of illness. When analysing causality we sometimes speak of a "minor" cause giving rise to major effects. This so-called "minor cause of a major effect" is the cause not of the whole long and ramified chain of phenomena that produces the final result, but only the cause of the first link in the chain. Sometimes the "minor cause" is merely a factor that starts up quite different causal factors. These are "triggering" factors, factors relating to the initial stage of avalanche processes and to a whole system's loss of labile equilibrium.

A distinction should be made between cause and occasion, that is to say, the external push or circumstance that sets in motion a train of underlying interconnections. For instance, a head cold may be the occasion for the onset of various diseases. One should never exaggerate the significance of occasions; they are not the cause of events. Nor should one underestimate them because they are a kind of triggering mechanism.

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