Friday, September 5, 2014

What's your sign?

Scientific opinion and popular opinion differ so widely and so often that it sometimes seems not only that they come from different worlds, but that the world they're describing must be an altogether different one. One of the most common examples of such disagreement is the case of astrology.

Within the confines of today’s scientific understanding of the universe, there is no mechanism that could plausibly explain how the position of the stars and planets at the time of a person’s birth could influence his behavior or his fate. The advocates of astrology apparently do not intend to call this scientific understanding of the universe into question. Their intention seems rather to be to assert that science is only one among many ways of thinking, all of which should have an equal right to exist.

The right to exist of differing ways of thinking is of course indisputable. Everyone should be able to have his own opinion on any subject. An equal right to existence is not the same as an equal right to attention, however; nor does it imply an equal right to praise. Those who care about justice, for example, will find unjust opinions, such as racism, entirely repulsive. Although one can recognize that such opinions have a right to exist and be expressed, one can nonetheless despise them.

If someone felt uncomfortable with an opinion because of a concern for justice, no one would find him unreasonable. The question I would like to ask is this: If there were someone who felt uncomfortable with an opinion, not because of concern for justice, but because of concern for truth, would it be fair to call him unreasonable?

The serious, passionate scientist does not consider his way of thinking as merely “one among many” equally valid ways of looking at the physical world. For him, science is the one way of thinking which attends most carefully to truth. The fundamental principle of science is that every truth claim must be justified, either by experiment or by deduction from previously established results. The truth must always be handled with the utmost caution, never merely carelessly fabricated. In real life it is not always handled this way, but this is the ideal.

In everyday conversation, however, things are of course not so serious. There the aim is not a conscientious search for truth, but only a carefree search for entertainment. A topic of conversation is raised, not to instruct and enlighten, but to entertain and amuse. Everyday conversation consists predominantly of jokes and small-talk.

When those participating in the conversation have differing opinions, however, the possibility arises that someone will chose a topic for his jokes and small-talk which for him is cheerful and amusing, but for someone else is a very serious and sensitive topic. This latter person might be someone who cares about justice, when the conversation relates to justice, or someone who cares about truth, when the conversation relates to truth.

When someone is faced with this situation, there are three alternatives. First, he can join in the conversation with his own jokes and small-talk, and thereby abandon or betray the seriousness of his ideals. Second, he can attempt to transform the casual conversation into a serious discussion about justice or truth, and thereby spoil the fun of everyone else. Third, he can maintain an embarrassing silence.

This is the situation in which the admirer of science, the lover of truth, finds himself when someone—merely with the intention of being friendly—asks him, “What’s your sign?”

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